England riots

U.K. Prime Minister Keir Starmer on Monday vowed "swift criminal sanctions" following an emergency meeting on the far-right riots that have broken out across England over the murder of three children.

As part of a "number of actions" to come out of the meeting, the government will "ramp up criminal justice" to ensure that "criminal sanctions are swift", Starmer told the media.

U.K. leader Keir Starmer warned far-right protesters on Sunday they would "regret" participating in England's worst rioting in 13 years, as disturbances linked to the murder of three children earlier this week flared across the country.

Masked anti-immigration demonstrators smashed several windows at a hotel that has been used to house asylum seekers in Rotherham, South Yorkshire.

Young rioters clashed with police late Saturday and early Sunday and targeted a mayor's home with a burning car as France faced a fifth night of unrest sparked by the police killing of a teenager, but overall violence appeared to lessen compared to previous nights.

A new study by Cardiff University has determined that Twitter can be used to identify dangerous situations up to an hour faster than police reports.