Police in London have arrested more than 100 people following a second night of looting and vandalism.
The disturbances in Enfield, Walthamstow and Islington came after riots in Tottenham on Saturday evening. These followed a peaceful protest about the death of Mark Duggan, who was shot dead by the police in an operation last Thursday.
At least nine officers were injured during the violence, which Scotland Yard said involved "copycat criminal activity".
The Today programme's Nicola Stanbridge witnessed last night's events in Enfield, where an off-duty police officer told her: "I've [been] threatened to be stabbed, I've [been] threatened to be attacked. The neighbours are in fear of their own lives."
And Nick de Bois, MP for Enfield North, condemned the violence and looting, adding that "there's no cause here, there is just sheer criminal behaviour".
Commander Steve Kavanagh, deputy assistant commissioner for the Metropolitan Police, insisted his force had not been "flat-footed" over the weekend and denied that the Met had been warned about the potential for trouble in Tottenham.
"I'm not aware of any warnings that there was going to be this kind of disorder," he told presenter John Humphrys.
"As far as we're concerned there was a vigil, rightly so, because the local community and the family wanted to express their sadness at the loss of Mr Duggan but there was no suggestion that was going to escalate into the types of violence we saw."
Get in touch with Today via
or text us on 84844.