Arnaud Beltrame

A French police officer who offered himself up to an extremist gunman in exchange for a hostage has died of his injuries, the interior minister said. Col Arnaud Beltrame was among the first officers to respond to the attack on the supermarket in France on Friday. His death, announced by Gerard Collomb, raises the toll to four. The gunman was also killed, and 15 people were injured in the attack.