The UK Prime Minister has told his third emergency Cobra meeting since violence broke out last week that police need to remain on "high alert", after many planned protests failed to materialise on Wednesday night.
Keir Starmer is understood to have said there is no doubt that levels of policing in the right places and swift justice over the past week, including sentencing, have acted as a deterrent to disorder.
He told reporters that Wednesday night's events turned out "much better than was expected" and that "anybody involving themselves in disorder, whatever they claim as their motive, will feel the full force of the law".
"It's important I repeat that because we need to make sure that in the coming days, we can give the necessary reassurance to our communities ... who are very anxious about the situation," he added.
His comments came as a police chief warned that those "intent on violence and destruction have not gone away".
More of those arrested in the violent disorder of the past week will appear in court today and about 150 charges have been brought over the unrest.
The figure is set to "continue to rise significantly", the National Police Chiefs' Council (NPCC) said.
By yesterday afternoon the total number of arrests stood at 483, it added.
Many planned events failed to materialise on Wednesday but Gavin Stephens, chairman of the NPCC, warned that those "intent on violence and destruction have not gone away".
About 110 protesters gathered in Barnsley town centre and stop and search powers were put in place in Southport from 2pm yesterday to 4am today after last week's violence.
Mr Stephens suggested police patrols could be stepped up at lower league matches at the start of the football season amid concerns there could be flare-ups at forthcoming fixtures.
"We've seen on the footage that we get back from the scene, young people, children, are on the fringes of it, and in that mob mentality can get drawn in," he told reporters.
"I think the youngest arrest was 11 years old. So, I think to have conversations with young people, children, teenagers over the course of the next few days is really, really important," he added.
Home Office minister Diana Johnson said social media giants have an "obligation" to deal with criminal offences being committed on their platforms.
She told BBC Radio 4's Today programme: "If there are criminal offences being committed on social media platforms now, then these social media companies have an obligation now to deal with that.
"If they're having incitement to violence on their platforms, that needs to be dealt with now, today. We don't need the Online Safety Act to deal with that."
In court, a man was jailed for posting racially aggravated, offensive online content on social media, Cumbria Police said.
The Crown Prosecution Service announced 16 more people had been charged with offences including violent disorder, criminal damage, burglary, arson, assaulting an emergency worker, and publishing written material to stir up racial hatred.
Cumbria Police said a man was charged following an investigation into the alleged posting online of content encouraging violence against police officers and promoting public disorder.
