The Zec chairperson, Priscilla Chigumba claimed that both presidential candidates had been reported to the police, while staying clear of earlier pronouncements by her acting chief elections officer.
His announcement set off celebrations among party supporters outside the building, but no official results have yet been declared.
"Overall (there was) a huge amount of voting - especially young people, mostly in a very good atmosphere, generally peaceful, which is positive", Brok added.
She shares with us some insight on the historic election.
While the Zimbabwe Electoral Commission has five days from the end of voting to release the final tally, the national mood is growing anxious partly because unofficial results are already swirling on social media.
Vote counting at a polling station in Bulawayo, Zimbabwe, on Monday.
The contenders in Zimbabwe's vote must accept the results and "should look at the larger picture of success - a successful election for Zimbabwe", he said.
Officials on Tuesday counted votes a day after millions of Zimbabweans peacefully cast their votes in a process closely watched by worldwide monitors, who have yet to announce whether the election was free and fair.
More than 5.5 million people were registered to vote and turnout was about 70 percent.
Chigumba said most of the 11 000 polling stations have now completed counting the votes and only the verification process is underway. If no presidential candidate wins more than 50 per cent of the vote, a run off will be held between the top two on September 8.
The UN High Commissioner for Human Rights warned of intimidation and threats of violence in the run-up to polling day, but said it was encouraged to see open rallies and peaceful demonstrations.
"While investors remain sceptical over whether Mugabe's former right-hand man has indeed turned over a new leaf, Mnangagwa's charm offensive with Western governments and businesses has at least given him a credible lifeline at the poll", said Verisk Maplecrodt analyst Charles Laurie in a note.
The Zimbabwe Electoral Commission said it had so far released results for seven parliament seats out of 210.