'Because people are not yet settled, they're thinking of too many things, ' said 65-year-old Chaka Nyuka.
The protesters are "out on the streets saying, 'We are going to defend our vote, ' " NPR's Eyder Peralta reports from Harare, adding that the partial release of parliamentary results was enough to convince protesters of alleged fraud. Officers responded with tear gas, water cannon and rubber bullets.
As gunfire echoed through downtown Harare, Mnangagwa called for calm and urge patience while results were collated.
The elections in Zimbabwe are the first since Robert Mugabe was forced out of his presidency past year.
The final result in the presidential poll is due by 4 August, but could be released sooner.
The Zimbabwe Electoral Commission (Zec) has until Saturday to announce the results but its chairwoman, Priscilla Chigumba, said she expects the announcement to be made well within that deadline.
The EU's assessment is critical in determining whether Zimbabwe can shed its pariah status as it could help attract investors and trigger an economic revival.
The ZEC "seeks to release results to buy time and reverse the people's presidential election victory", Chamisa said on his Twitter account.
Several hundred MDC supporters crowded around the party's headquarters Wednesday and started marching toward the electoral commission after Mr. Chamisa declared himself the victor.
Zanu PF United Kingdom branch chairperson, Nick Mangwana has already congratulated his party Zanu PF for attaining majority of National Assembly seats, with 72 % of declared by the ZEC.
Ballots are still being counted in the presidential election with results expected to be announced later this week.
"You can't rig our election...this is a military government", the crowd shouted.
The electoral commission said it would start announcing results for the presidential race but then pushed it back at least 24 hours.
Both the European Union and U.S. observer missions urged the release of the presidential results as soon as possible, with the lead observer for the United States team, former Liberian leader Ellen Johnson Sirleaf, warning that "the more the presidential vote is delayed, the more it calls into question the population's confidence in the election process".
More than five million people were registered to vote, and there was a high turnout of 70%.
MDC supporters burnt tyres and pulled down street signs as protests spread from the party headquarters in Harare.
"We have received a confidential report that (Vice President and retired Army) General Chiwenga has ordered the assassination of Nelson Chamisa and myself".
But his backers have leveled claims of rigging and intimidation by the ruling party that took over after Mugabe was ousted in November. The party now has an unassailable majority at 109 seats, while MDC-Alliance has 41, NPF has one seat and one independent.
Expected star witness may not testify in Trump ex-aide Manafort's trial
Aug 01, 2018 - 21:08
Legal experts said Manafort may be hoping to be found not guilty - or holding out hopes of a presidential pardon. But federal judges overseeing both cases have upheld Mueller's authority to investigate and prosecute Manafort.
Trump Calls for Photo ID for Voting at Florida Rally
Aug 01, 2018 - 19:50
Later in the clip, DeSantis is seen teaching his daughter how to read the 2016 Trump campaign slogan " Make America Great Again ". Although photo identification is required for some purchases, such as alcohol or cigarettes, by and large, it's not.
Hundreds of hikers trapped on Indonesian volcano after quake
Jul 30, 2018 - 21:47
Local news Metro TV reported that people were still sleeping when the first quake hit and they quickly fled their houses in panic. More than 160 residents in Lombok were injured, with thousands more displaced after their homes were damaged by the quake.
After $120B Stock Tumble, Facebook Investors Claim Fraud
Jul 30, 2018 - 21:32
The complaint also aimed at the company's failure to report falling operating margins and the significant decline in active users. Facebook's decline significantly outpaced the $91 billion that Intel lost in September of 2000, during the original dot-com bust.
'Fortnite' celebrates birthday with new challenges, cake cosmetic set
Jul 30, 2018 - 18:16
Celebrity fans such as rapper Drake and the Los Angeles Lakers' Josh Hart have pushed it further into mainstream consciousness. Three special challenges have been added to Fortnite this week as part of the birthday celebration.
Michael Cohen tape fuels debate about Trump, cash and credibility
Jul 30, 2018 - 18:12
The payment to Daniels, who says she had an intimate relationship with Trump, was meant to buy her silence over the affair. Donald Trump and his son Donald Trump, Jr .at the Republican National Convention in Cleveland, Wednesday, July 20, 2016.
Dead As Carr Fire In Northern California Continues To Burn
Jul 30, 2018 - 14:31
The nearby town of Keswick, with a population of about 450, was reduced to cinders, and two firefighters were killed. When Jason Campbell returned on Friday, he found their home of five years was gone, along with an RV and a boat.
Groups of bodies found hugging as dozens killed by Greek wildfires
Jul 28, 2018 - 21:35
The rest of the survivors were picked up by a fishing boat with an Egyptian crew who jumped into the water to rescue them. The mayor added that the infrastructure of the city of Mati , where there were the most deaths, destroyed by fire by 98%.
Facebook just had the worst day in stock market history
Jul 28, 2018 - 19:50
Twitter was down 6 percent, Amazon and Google 2 percent and Apple 1 percent. "We're starting to see that this quarter", he said . More likely, though, market buzzards are holding off because of how quickly some analysts are turning on the company.
Emery calls on Arsenal youngsters to follow Smith Rowe example
Jul 28, 2018 - 19:22
The Gunners and Atletico will stay in Singapore for the rest of July to play one more match. Aaron has the condition to be one of the captains".
Toronto mass shooter's family blames mental illness - USA
Jul 27, 2018 - 21:47
Hussain's family , in a statement to CBC News , denounced his "horrific actions" and said he was suffering from mental problems. To own a gun in Canada , an individual must apply for a licence, pass a background check and pass a firearm safety test.
Anthony Martial leaves Manchester United tour for birth of second child
Jul 27, 2018 - 21:29
He found the target nine times in Premier League competition last season, but was restricted to just 18 starts. Because it's closed for a month, where he can only think about football .
Nick Jonas and Priyanka Chopra are reportedly engaged and fans are crying
Jul 27, 2018 - 20:43
She said: 'It happened a year ago . - via Getty Images Priyanka Chopra and singer Nick Jonas spotted together in Mumbai . Moreover, Ali Abbas Zafar has indirectly hinted towards Nick Jonas as the reason for PC's exit from " Bharat ".
Jemima pays tribute to Imran Khan's political journey
Jul 26, 2018 - 16:42
On Wednesday, video images of a smiling Khan marking his ballot landed him in trouble with the country's Election Commission. The main contest is expected to be between three mainstream political parties and a five-party religious alliance.
Giant Liquid Water 'Lake' Discovered On Mars
Jul 26, 2018 - 15:50
The team that wrote the study, including lead author Professor Roberto Orosei, have ruled out any other causes for the brightness. The location's radar profile resembled that of subglacial lakes found beneath Earth's Antarctic and Greenland ice sheets.