Eight blasts hit locations including churches and hotels across Sri Lanka, leaving at least 290 people dead and 500 injured
Congregations were taking part in Easter Sunday services at the churches when the blasts hit
The five-star Shangri-La, Kingsbury and Cinnamon Grand hotels in the heart of Colombo were targeted
A local group named as National Thowheed Jamath are believed to be behind the attack
Officials say 24 people have been arrested in connection with the attacks
On Sunday, Sri Lanka's government shut down or restricted social media sites across the country. They said this was to stop "wrong information" spreading online.
Officials have been appealing to the public to avoid speculation or acting rashly.
We're resuming our rolling coverage of the aftermath of the devastating attacks in Sri Lanka.
More than 200 people are confirmed to have died on Sunday when bombs were set off in churches and top-end hotels around the country.
There is as yet no claim for the attacks, but several arrests have been made.
A nationwide curfew was put in place overnight but was lifted in the past hour.
As night falls in Sri Lanka, we are pausing our live coverage until Monday morning local time. Here's what we know so far about the attacks:
You can keep up to date with the latest developments on our main story here.
Image source, Getty ImagesA few people were seen on the streets of Colombo after a curfew was declared but images appear to show that most people stayed at home.
Image source, Reuters
Image source, AFP
Image source, AFPCandles were lit at vigils at a church in Peshawar and in Karachi.
Image source, Reuters
Image source, ReutersDenmark said three of its nationals were among the victims.
The US state department said "several" American citizens had been killed.
Prime Minister Ranil Wickremesinghe has been briefing reporters in Colombo.
He has mentioned alleged existence of prior information of an attack - which he says was not shared with him.
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He also urged calm.
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Meanwhile Defence Minister Ruwan Wijewardene urged the media not to publish names linked to the attacks, saying that it could lead to tension between communities.
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Prime Minister Ranil Wickremesinghe says eight people have been arrested in connection with the Sri Lanka blasts.
Image source, Getty ImagesThe Cinnamon Grand is a luxury hotel in Colombo
One of the bombers waited in a queue for a buffet at the high-end Cinnamon Grand hotel before detonating explosives, AFP news agency reports.
"There was utter chaos", the hotel manager said. "It was 8:30am and it was busy.
"He came up to the top of the queue and set off the blast."
This photograph of a statue of Christ inside one of the churches that was attacked is being widely shared on social media.
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Image source, PASpeaking at his Easter address at Canterbury Cathedral, the leader of the Anglican Church, the Archbishop of Canterbury, Justin Welby, condemned the attacks.
He said: "Pride denies our need of God and says we are sufficient to ourselves that the will to power is indeed our vocation.
"The will to power leads to the murder of innocents in Sri Lanka. The utterly despicable destruction that on this holiest of days seeks to challenge the reality of the risen Christ.
"To say that darkness will conquer, that our choice is surrender or death. Jesus chose to defy this darkness and he is risen indeed."
She leaves a hotel just before a bomb goes off there
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Noted Tamil actress Radikaa Sarathkumar walked out of the Cinnamon Grand hotel just before it was hit.
She told her 1.4 million Twitter followers: "I just left Colombo Cinnamon Grand hotel and it has been bombed, can't believe this shocking".
Her husband R Sarathkumar, the actor and founder of a Tamil political party in India, the All India Samathuva Makkal Katchi, also tweeted.
He said: "A dastardly act of terror unleashed in Colombo is condemnable, our heart goes out to innocent lives lost in the attack."
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UK politicians react to the attacks:
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At least five British citizens are among those killed in the attacks, Sri Lanka's foreign ministry says.
Images of the attacks targeting churches and hotels, in which hundreds of people died.
Read MoreUS politicians react to the attacks:
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Image source, AFPA curfew is now in place in Batticaloa and across the country
Simon Whitmarsh, a 55-year-old retired doctor from Wales, is on holiday in Sri Lanka. He was cycling near the city of Batticaloa when he heard a "big bang" and saw "smoke billowing into the sky about half a mile away".
A blast ripped through a church in the city as worshippers were gathering for services.
"Then we saw the ambulances, people crying, and we were told to leave the area," he told the BBC.
As a former consultant paediatrician, Mr Whitmarsh says he felt compelled to offer to help those affected so volunteered at the local hospital - but was told the situation was in hand.
"By that stage, they had activated emergency protocols," he says. "The hospital was heavily guarded by the army, who were stopping most people going in.
“All the streets around it were closed. It seemed very well organised. All I did was find someone senior to see if I could help."
He says the nationwide curfew, imposed by Sri Lankan authorities in the wake of the blasts, has completely emptied streets and roads that were bustling only hours ago.
"Now it's curfew, there's nothing. No vehicles, no people walking, nothing," he says. "'Stay indoors' is the message."
He added: "London people have said they were thinking of going home, but we can't do anything until the curfew finishes."
A statement from Israel's government says: "Prime Minister Benjamin Netanyahu expresses in the name of Israel's citizens deep shock over the murderous attacks against innocent civilians in Sri Lanka.
"Israel is willing to aid the authorities in Sri Lanka in this difficult time.
"The whole world must unite in the struggle against the scourge of terror."
Former US President tweets
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