A 68-year-old man has died in hospital after being attacked during the riots in London earlier this week.
The Metropolitan Police have begun a murder investigation.
Richard Bowes been trying to stamp out a fire in Ealing when he was assaulted. He died in hospital last night.
No serious incidents were reported for a second successive night following four previous nights of rioting and looting.
Some 16,000 officers were on duty in London overnight, with a similar number expected on the streets over the weekend.
One of Britain's most senior police officers has rejected Prime Minister David Cameron's criticism of the initial tactics used by officers to deal with the rioting.
Mr Cameron told Westminster MPs yesterday that too few officers had initially been deployed and police had treated the situation as a public order issue rather than as a criminal matter.
However, President of the Association of Chief Police Officers Hugh Orde - a former PSNI chief constable - said the forces had learned and reacted quickly.
More than 1,600 people have now been arrested by forces in towns and cities hit by chaos and destruction earlier this week and more than 796 people have been charged with offences related to the four days of disorder.
The majority of charges relate to burglary, theft, handling stolen goods, violence and violent disorder.
In cases where the age of the defendant is known, 83%, or 576, are adults and 17%, or 122, are under 18.
Two-thirds of those who have come before courts have been remanded in custody and a large number have been sent to Crown Courts, which have powers to hand down prison sentences of longer than six months.
Mr Cameron was due to chair a meeting of the British government's emergency committee Cobra this morning, a day after vowing to do ‘whatever it takes’ to restore order to the streets.
In an emergency statement to the recalled House of Commons yesterday, he set out a range of moves being examined in response to the situation, including the use of curfews and temporary curbs on the use of social media.
Mr Cameron also suggested sentencing could be toughened and more action taken against gangs as well as a raft of measure to help damaged businesses and communities recover, including new funds totalling £30m.
Attacked student has no ill-feelings
A Malaysian student mugged in London says he is determined to stay in Britain as officers continued to question one of his suspected attackers.
Ashraf Rossli, 20, who was rushed to hospital with a broken jaw after being set upon during London's riots less than a month after arriving in Britain, also thanked the public for their support.
Mr Rossli spoke to reporters as a man in his 20s was being questioned by Scotland Yard on suspicion of robbery.
The attack prompted widespread anger after police said hooded youths initially pretended to help him before going through his rucksack, stealing his mobile phone and wallet in Barking in the east of the city on Monday night.
He was discharged from hospital yesterday and, at a press conference, said he harboured no grudges.
He said: ‘My family are worried about me and my mother would like me to go home. But I am determined to stay.
‘Britain is great. Before I came here I was very eager and I haven't got any ill-feelings about what happened.
Mr Cameron said the attack left him ‘disgusted’.
Mr Rossli said he appreciated Mr Cameron's support but added he did not want to comment on the Prime Minister's description of a ‘sick society’.
Appeal for Tottenham shooting witnesses
Meanwhile, investigators examining the circumstances surrounding the death of a man shot by police, in an incident which acted as a trigger for the first night's rioting in Tottenham, appealed for witnesses.
Father-of-four Mark Duggan, 29, died after being shot in the chest last Thursday.
The Independent Police Complaints Commission is appealing for witnesses who may have seen or heard anything to come forward.
