An Australian TV station has tweeted a video of people taking cover after multiple shots were heard in Harare, as opposition supporters clashed with police:

A BBC correspondent tweets about the escalating confrontation between Zimbabwe's security forces and opposition supporters in the capital, Harare, following disputed elections:

A Twitter user has shared a video of an army truck heading to the centre of Harare, where clashes have broken out between police and opposition supporters:

A bus said to be linked to Zimbabwe's ruling Zanu-PF party has been torched in the capital, Harare, a respected local media organisation has tweeted:

A BBC reporter in the capital, Harare, has tweeted that he can hear loud gunfire:

Here's a picture of a burning a barricade in Zimbabwe's capital, Harare:

Image source, Reuters

Protesters also burnt an election banner with the image of President Emmerson Mnangagwa.

Image source, Reuters

Soldiers have been deployed in Zimbabwe's capital, Harare, and sustained gunfire can be heard, a BBC correspondent tweets:

A BBC reporter has tweeted a photo of crowds running from tear gas in the capital, Harare, as the first incidents of unrest are reported following Monday's historic election:

Clashes have broken out between police and supporters of the opposition MDC Alliance in Zimbabwe's capital, Harare, following disputed elections.

A BBC reporter is tweeting from the scene:

US observers have been giving their preliminary verdict on Zimbabwe's historic presidential and parliamentary elections, saying the process thus far "has not made the mark".

A BBC correspondent is tweeting from their press conference in Harare:

Image source, AFP

Zimbabwe's opposition MDC Alliance presidential candidate Nelson Chamisa is insisting that he won Monday's election - the first since long-serving ruler Robert Mugabe was ousted in November.

In a tweet addressed to the nation, Mr Chamisa, who is a pastor, said: "We have won the popular vote. You voted for total change in this past election! We have won this one together. No amount of results manipulation will alter tour will #Godsinit."

Image source, AFP

The Zimbabwe's Electoral Commission (Zec) has failed to release presidential election results at its eagerly awaited press conference in the capital, Harare.

Expectations were raised after the state broadcaster reported that the presidential result will be released.

The announcement was not made as representatives of some of the 23 candidates failed to pitch up to verify the results, a BBC correspondent tweets from Harare:

The absence of representatives of MDC Alliance leader Nelson Chamisa is not surprising.

The MDC Alliance said on Tuesday that the result was being rigged in favour of President Emmerson Mnangagwa - an allegation Zec strongly denied.

Police in the Democratic Republic of Congo have fired tear gas at supporters of opposition leader and presidential hopeful Jean-Pierre Bemba in the capital, Kinshasa.

Thousands of people took to the streets to welcome Mr Bemba after the International Criminal Court acquitted him of war crimes charges.

Image source, Reuters

A Zimbabwean journalist has tweeted that the ruling Zanu-PF party will not face a legitimacy crisis on the continent, as the African Union (AU) and two regional bodies have by and large endorsed the electoral process - despite opposition claims of rigging.

A BBC correspondent has tweeted that supporters of the main opposition party have marched in the capital, Harare, alleging the elections have been "stolen" by the ruling party:

"Improved political climate, but un-level playing field and lack of trust," that's the preliminary conclusion the European Union (EU) observer mission has reached about Zimbabwe's landmark elections.

This is the first time in 16 years that the government has allowed the EU to monitor elections in Zimbabwe.

Ex-President Robert Mugabe had a bad relationship with the EU, and banned them from monitoring elections.

You can read their full statement here:

Riot police have positioned themselves at the headquarters of the Zimbabwe Electoral Commission (Zec), just to make sure that supporters of the main opposition presidential candidate, Nelson Chamisa, do not storm the building.

Al Jazeera's correspondent has tweeted from the scene:

A BBC correspondent at the headquarters of the Zimbabwe Electoral Commission (Zec) has tweeted:

The Zimbabwe Electoral Commission (Zec) has started to announce the latest batch of results from the parliamentary election.

It is unclear whether it will announce results from the presidential poll.

A BBC correspondent is at Zec's headquarters:

Supporters of Zimbabwe's main opposition presidential candidate Nelson Chamisa are toyi-toying - a struggle dance - in the centre of Zimbabwe's capital, Harare a BBC correspondent tweets: