Videos posted on social media show people confronting a line of police officers, who are holding batons and trying to clear debris off the road.
The 20-year-old later died in hospital.
Later, a truck was driven through one of the barricades protesters had erected.
But that protest, which carried on late into the night, became violent when some demonstrators turned on police, pelting them with objects, and others hit out at cars trying to drive around the blockade.
Scotland Yard said officers saw him swallowing something as he was tackled by police in a shop in Dalston - near the scene of tonight's unrest.
A woman protester argues with police after a demonstration demanding justice after the death of Rashan Charles.
A protest triggered by the death of a black man after he was restrained by police erupted into violent clashes last night as crowds blocked a road in northeast London.
Several of the bins and mattresses used to block the road were later set alight, with many shop windows in the area also shattered.
The Independent Police Complaints Commission (IPCC), which is investigating the events that led to the death of Charles, said in a statement: "We understand the concerns raised following Rashan's death".
Restaurants and bars pulled down their shutters, locking customers inside, amid angry scenes on the streets.
However, with violence seemingly being problematic for the police, the Hackney division tweeted: "Officers have been subjected to abuse and violence". Whatever the frustrations, this is patently NOT what the family of Rashan Charles wanted.
In an update on Friday, the IPCC said it had collected videos from cameras worn by police officers and CCTV, and had sent one of its commissioners Cindy Butts to Dalston to meet with people concerned about the case.
"We will independently examine the circumstances of this incident, we will follow the evidence, we will consider whether there is an indication there may have been misconduct or criminality, and we will seek to answer the questions that Rashan's family and the community of Hackney understandably have".
Officers retreated as items including bottles were thrown towards them, but the group remained at the barricade, stopping cyclists and motorists from passing.