UK far-right activist arrested after migrant boat slashed in English Channel

A far-right activist who had led protests against migrants crossing the English Channel in small boats has been arrested for allegedly slashing a dinghy in the water, police said Thursday.

The incident comes as agitators against immigration adopt a confrontational new tactic of trying to stop the boats landing on England’s shores, clashing with police and rescuers in the process.

A video posted on Tuesday on social media appears to show Daniel Thomas, 37, taking a knife to an inflatable boat,...