More than 100 people have been arrested as officers were attacked, police vehicles damaged and shops looted.
Disorder spread to Enfield, Walthamstow and Waltham Forest in north London and to Brixton in the south of the city.
Home Secretary Teresa May has cut short her holiday to return to the UK following the disorder.
Some 35 officers have been injured over the two nights of rioting.
Three officers were hurt when a vehicle hit them as they tried to make an arrest in Waltham Forest, east London.
Clashes broke out in Enfield, north London, on Sunday evening where shop windows were smashed and a police car damaged.
There have been reports of a gang of up to 200 youths looting shops and charging police in Coldharbour Lane and the High Street in Brixton, south London.
Brixton Tube station is closed
Tottenham High Road and Bruce Grove closed between Monument Way and the Roundway
Lordship Lane closed between the A1010 High Road and Bruce Grove
Church Street in Enfield closed between Chase Side and Willow Road
Bus routes 67, 123, 141, 243, 259, 279, 349, 318, 341 and W4 are on diversion
Metropolitan Police Commander Adrian Hanstock said: "This is not groups of people acting on behalf of communities or with any consent.
"This is individuals who are actually attacking communities, businesses, properties and houses and actually causing a huge amount of upset and criminality."
The Met said it had dealt with several incidents of "copycat criminal activity" across the city.
Three officers injured after being hit by a vehicle in Chingford Mount, Waltham…