British Prime Minister David Cameron will meet with his crisis-response committee again Wednesday after a fourth night of violence hit London neighborhoods and spread elsewhere in the country. London''s Metropolitan Police Service has arrested 768 people in connection with violence, disorder and looting, the department reported early Wednesday. Authorities have charged 167 people with crimes. Cameron, who cut short his vacation in Italy to respond to the crisis, recalled lawmakers from their summer break. Parliament is to meet Thursday. "And I have this very clear message to those people who are responsible for this wrongdoing and criminality: you will feel the full force of the law and if you are old enough to commit these crimes, you are old enough to face the punishment," Cameron said. The scene before dawn Wednesday was largely calm as about 16,000 officers were dispersed onto London''s streets Tuesday night -- twice the number of the night before, according to the (CNN). Police reported outbreaks of violence Tuesday evening in Wolverhampton and West Bromwich, about 100 miles north of London, and in the northwestern city of Manchester. There, a library and supermarket were ablaze, said Jeff Gill from the Greater Manchester Fire and Rescue. In Nottinghamshire, police sought to handle more than 1,000 reports of incidents -- most of them related to rowdy behavior by roaming bands of youths -- throughout the city and in Canning, Clifton, Basford and Radford, police said Tuesday. The events are "gratuitous, senseless and wholly unjustified acts of wanton criminality," said Nottinghamshire Assistant Chief Constable Paul Scarrott, who led the police operation. The riots were sparked by the shooting death on Thursday of Mark Duggan, 29, a black man. Officers from Operation Trident -- a Metropolitan Police unit that deals with gun crime -- stopped the cab in the working-class, predominantly Afro-Caribbean district of Tottenham during an attempted arrest, the Independent Police Complaints Commission (IPCC) said. Soon after, shots were fired and Duggan, a father of four, was killed. Shooting deaths are rare in England. An illegal firearm had been found at the scene, with a "bulleted cartridge" in the magazine, but there was "no evidence" it was fired during the incident, the commission said. A bullet that lodged in a radio carried by an officer was police issue, the commission said. "A post-mortem examination concluded that Mr. Duggan was killed by a single gunshot wound to the chest. He also received a second gunshot wound to his right bicep," the commission said, without saying who fired the bullets nor why police had stopped the cab. The man''s family and friends, who blamed police for the death, had gathered peacefully Saturday outside the Tottenham police station to protest. The protest soon devolved into violence as demonstrators -- who included whites and blacks -- tossed petrol bombs, looted stores and burned police cars. Violence continued in isolated pockets Sunday, spread Monday to other parts of the nation and continued Tuesday. Tottenham has been the site of riots before. In 1985, Floyd Jarrett, who was of Afro-Caribbean origin, was stopped by police near the Broadwater Farm estate in Tottenham on suspicion of driving with a forged tax disc, a document all British vehicles must carry. A few hours later, officers raided the nearby home of his mother, who collapsed and died during the raid. Rioting erupted shortly afterward, and a police officer, Constable Keith Blakelock, was killed.