Home Secretary Theresa May is to return from her summer holiday following a second night of violence in London.
More than 100 people have been arrested and 35 officers injured as police vehicles were damaged and shops looted in many parts of the capital.
Following riots in Tottenham on Saturday, disorder spread to Enfield and Walthamstow in north London and Brixton in the south of the city.
Deputy Prime Minister Nick Clegg called the rioting "opportunistic theft".
Theresa May, who has been in contact with other senior politicians and police leaders while overseas, will meet Acting Met Police Commissioner Tim Godwin and other officers on Monday afternoon.
A Home Office spokesman said it could not confirm if Ms May has cut short her holiday to come back to the UK, or whether she was already due to return on Monday.
Earlier the home secretary said: "Last night, police officers again put themselves in harm's way to protect Londoners and their property.
"Londoners have made clear that there are no excuses for violence, and I call on all members of local communities to work constructively with the police to help them bring these criminals to justice."
A spokesman for the Prime Minister David Cameron, who is on holiday in Italy, said: "We are very clear that those responsible for that violence and looting will be made to face the consequences for their actions."