Bangladeshis are waiting to see what unfolds, a day after Prime Minister Sheikh Hasina resigned and fled the country
Parliament was dissolved on Tuesday - a key demand of student protest leaders, who have also said they will not accept a military-led government
The country's army chief has promised an interim government and said new elections will be announced
Huge crowds stormed Hasina's official residence in Dhaka on Monday, and there was looting and disorder in the capital, resulting in the deaths of more than 100 people - overtaking Sunday as the deadliest day of violence
Hasina is in India, but it is unclear where she might end up more permanently
The student protests began in July with calls to abolish civil service job quotas, but spiralled into demands for Hasina to quit after 15 years in power
Prime Minister Sheikh Hasina has left the country, our colleagues at BBC Bangla have confirmed.
Reports say her sister is with her.
We will keep updating you as we get more.
BBC Bengali Service
Reporting from Dhaka
One of our correspondents in Mohakhali area in Dhaka reports that thousands of people from Uttara are moving towards Shahbagh on foot and in rickshaws. There are many women among them.
Another correspondent in the Mirpur area says there are also thousands of people walking and taking rickshaws towards Shahbagh. The neighbourhood is a major transportation hub in the centre of the city that also has many parks and universities.
Army personnel are not hindering them, and from noon local time there has not been much of a police presence seen on the streets.
Thousands in the Mohakhali area are heading to Shahbagh in Dhaka
Prime Minister Sheikh Hasina has now left her palace in the capital Dhaka for a "safer place", a source close to the politician is quoted as saying by the AFP news agency. Reuters quoted an unnamed source who said she and her sister had been taken to a "safe shelter" away from her residence. Sheikh Hasina's whereabouts are currently unclear.
We're seeing reports of deadly clashes between police and protesters in the Jatrabari neighbourhood in Dhaka, although the death toll has varied.
Dhaka Tribune reported that six have been killed while Prothomalo said three have been shot dead. It is unclear if those killed are protesters or police officers.
All eyes are on the number of people taking the streets in today's march.
"If everyone is joining, from students to rickshaw pullers, it might end up being something like a people's uprising," political analyst Mubashar Hasan told the BBC.
A large turnout could put more pressure on Prime Minister Sheikh Hasina as protesters are calling for her resignation.
"This is the biggest challenge she has faced in her tenure. This demand is not coming from a political party. It is coming from the seemingly wider population of the country," Mr Hasan said.
He added that he is also watching for an escalation of violence between supporters of the governing party and protesters, which could result in more deaths.
BBC Bengali Service
Reporting from Dhaka
There have been reports of clashes in at least three areas in Dhaka, namely the residential neighbourhoods of Bakshi Bazar, Banasree and Basundhara.
A BBC Bengali journalist observed protesters calling out to residents to come down and join the march - and many responded to the call.
Police are now stationing themselves at intersections instead of small roads. Army personnel also remain on guard.
Bangladesh's internet seems to be back up and running once more.
News websites like the Dhaka Tribune are now accessible again, having returned error messages earlier this morning.
According to BDNews, the internet was down from 11:00 local (05:00 GMT) to about 13:30 local.
How long it will be back up for, however, remains to be seen.
The Dhaka Tribune reports, external that access to social media platforms remains suspended.
We've just received this image from our colleagues in Dhaka, where police officers can be seen standing on the road - we're told they are protecting their station.
The streets are largely empty as thousands of people have begun a march.
Earlier this afternoon, police officers had fired sound grenades and tear gas shells at protesters marching toward the Dhaka neighbourhood of Shahbagh, according to news reports.
Image source, Salman Saeed / BBC
Anbarasan Ethirajan
BBC News
A chant has become increasingly popular in Bangladesh among young protesters who want their prime minister to step down.
It goes, "One, two, three, four, Sheikh Hasina is a dictator!"
Hearing those words on the street just a month ago would have been unthinkable - the 76-year-old has ruled the South Asian nation with an iron fist since 2009.
But she is facing a deadly stalemate. There is an indefinite curfew across Bangladesh and fears of more violence as thousands of protesters march in the capital of Dhaka. They are Bangladeshis of all stripes, not just students.
This time, the anger feels louder than ever before.
People are joining the protests today knowing that nearly a 100 have been killed in recent weeks - many of them shot by the police.
If they are indeed undeterred by the prospect of violence, that doesn’t augur well for any government, least of all an embattled one.
This is certainly the most serious challenge Ms Hasina has faced since taking office after a contentious election win in January.Read our full analysis here.
Image source, Getty ImagesFile photo of a call centre in Bangladesh
As we reported earlier, broadband internet has been disconnected across Bangladesh, following an earlier shutdown of the mobile internet service.
Internet service providers say bandwidth supply from submarine cables and international terrestrial cables (ITCs) has also been cut off.
While service providers typically sever internet service on the orders of the government, two officials from the Bangladesh Telecommunication Regulatory Commission told BBC Bangla that they do not have any information about the blackout.
Commission Secretary Noor-i Khawaja said he only learned about the broadband service going offline after he saw it reported on television.
Broadband service was completely stopped around 10:30am, but had already been slow earlier on Monday morning.
4G mobile internet service has been offline since Sunday afternoon.
An indefinite nationwide curfew continues.
Police have fired sound grenades and tear gas shells at protesters as they marched toward the central Dhaka neighbourhood of Shahbagh, according to Bengali publication Protho Malo.
The protesters had just reached Chankharpul intersection, a busy road near one of Bangladesh's busiest overpasses, when authorities opened fire.
Tens of thousands of anti-discrimination protesters are currently on the move in what has been dubbed the "Long March to Dhaka".
Bangladesh army chief Waker-uz-Zaman is set to address the country at 0800 GMT (0900 BST).
Army units have currently been deployed across various parts of the capital city in a bid to bolster its security.
It is currently very difficult to get any updates out of Bangladesh.
The government appears to have initiated a complete internet shutdown, blocking outside access to local web pages.
The BBC's Bengali service has found it difficult to get regular updates from our colleagues in Dhaka.
According to Internet outage monitoring site NetBlocks, the country is "in the midst of a near-total internet shutdown".
BBC Bengali Service
Reporting from Dhaka
Thousands of protesters have started marching in the Uttara suburb of the capital, chanting and demanding Prime Minister Sheikh Hasina's resignation - under the watchful eye of army personnel and police officers who are stationed across various points in the city.
Barbed wire fences have been set up at various points, including near a college - though protesters appear to be taking routes to avoid these.
Bangladeshi security forces are patrolling the capital Dhaka as tens of thousands of protesters demanding Prime Minister Sheikh Hasina's resignation are preparing to take to the streets.
Many protesters are demanding justice for the victims who have already been arrested and killed in recent clashes with the authorities, as anti-quota protests spiral deeper into violence and bloodshed.
The government deployed army units to various locations across the city on Monday in a bid to bolster its security against the growing legion of enraged demonstrators.
Image source, Getty ImagesArmy personnel are standing guard during an indefinite nationwide curfew.
Image source, Getty ImagesSunday marked the deadliest day of unrest since demonstrations erupted last month, with at least 90 people killed and hundreds more injured.
Image source, Getty ImagesAuthorities have responded to the protests with force.
Soutik Biswas
India Correspondent
Delhi's silence on the escalating violence in Bangladesh isn't surprising, say experts.
For one, India generally avoids commenting on political crises or sensitive internal matters in countries with which it has close relations.
Also, during volatile times in Bangladesh, Delhi aims to protect its personnel and interests.
Anti-India sentiment can flare up, particularly from government critics who oppose Dhaka's close ties with Delhi, say experts.
Thus, Indian officials avoid actions that may highlight their relationship with Bangladesh, especially when anger and opposition in Dhaka is rising.
Bangladesh authorities have ordered a complete internet shutdown, according to news reports.
The news site of The Dhaka Tribune and its sister publication the Bangla Tribune, two of Bangladesh's most widely read news websites, have both gone offline.
The Daily Star Bangla, another popular news website, is also down.
Attempts to reach the websites of these publications now results in an error message reading "Connection timed out".
Image source, Getty ImagesThe spiralling protests across Bangladesh are creating an unprecedented situation for the country, according to Ali Riaz, a professor at the Department of Politics and Government at Illinois State University.
"It is a turning point," Mr Riaz told the BBC's Newsday. "I'm afraid that Monday could become the turning point of the regime as well as the democracy of the country and a day of reckoning as well."
Mr Riaz said that the "mayhem and death" unfolding in Bangladesh was leading to a situation that is "not only unstable [but] entering into uncharted territory."
He called Prime Minister Sheikh Hasina's refusal to step down and her denunciation of student protesters as "terrorists" an "outrageous" assertion.
"It indicates that the government is digging its heels and it is trying to continue its survival effort with brute force," he said.
"They're ready to actually shed more blood and lives, which is [an] absolutely unacceptable proposition."
The majority of Bangladesh's population of around 170 million has access to the internet, regulatory data shows.
At the end of last year, the country had 131 million internet users, according to the Bangladesh Telecommunication Regulatory Commission.
Around 90% of them accessed the internet via mobile devices. Now with the unrest, mobile internet is unavailable in large parts of the country for the second time in weeks, along with access to social media platforms like Facebook, YouTube and TikTok.
The move likely targets protesters as it will make it more difficult for them to organise their movements. But this could also have impact on businesses and society at large.
BBC Bengali Service
Reporting from Dhaka
The atmosphere is tense in the Bengali capital of Dhaka, as fears of more violence simmer beneath the surface.
In a bid to bolster its security, the government has deployed army units to various locations across the city, including Dhaka University, the Bangladesh Television headquarters and the Metrorail.
Police are patrolling intersections on high alert and several roads have been closed with barricades. But the streets are mostly empty.
Apart from a few rickshaws and motorbikes, barely any private vehicles can be seen.
Meanwhile, tens of thousands of protesters from the civil disobedience campaign are preparing to mobilise and march to the neighbourhood of Shahbagh, in what has been dubbed the "Long March to Dhaka".