A forensic officer works at the scene where where three men were killed after being hit by a car in an incident locals some were linking to the violence early Wednesday Aug. 10, 2011 in Birmingham, England. The presence of thousands of extra police officers helped keep a nervous London quiet early Wednesday after three nights of rioting, but violence and looting flared in English cities including Manchester and Birmingham. (AP photo/Rui Vieira/PA Wire)

Four days after police killed a 29-year-old man, arson and looting continue as riots spread from London to other cities in England, including Birmingham, Liverpool, Bristol and Nottingham.

Within two days, more than 170 people were arrested after police shot and killed Mark Duggan, a London citizen, according to the BBC.

Junior Luke Friedman witnessed the onset of the riots as he was leaving a futball (soccer) match in Tottenham on Aug. 6.

As he headed towards the Seven Sisters underground stop, he heard loud shouting.

“When I could finally see what was making the noise I saw a big mass of [Black British] protesting the death of Mark Duggan,” he said. “When I passed it was still light out and the protest was still peaceful.”

As in most protests, the crowd was holding signs that said, “What about his family” and “We want answers.” Friedman also said that police were near the scene in case violence erupted from the protest.

“The atmosphere was electric,” he said. “The crowd was simply chanting that they wanted justice in the aftermath of the death of Mark.”

Friedman, who is currently studying abroad in Oxford, was unaware that what he had witnessed in Tottenham had turned into a violent riot until he made it back to his dorm.

Now, over a week after the initial protests erupted in Tottenham, more than 3,100 people have been arrested and five people have been killed, according to the BBC.

Merseyside Police officers help clean up a burnt out caravan in the Toxteth area of Liverpool, England Wednesday Aug. 10, 2011 following rioting in the area Tuesday night. Thousands of extra police officers flooded into London in a bid to end Britain’s worst rioting in a generation. An eerie calm prevailed in the capital, but unrest spread across England on a fourth night of violence driven by diverse and brazen crowds of young people. (AP Photo/Peter Byrne)