French security forces have detained 38 migrants seeking to cross the Channel on a small boat to Britain after they clashed with police, prosecutors said.
Three members of the gendarmerie were injured in Oye-Plage outside Calais on France's northern coast, prosecutors in the town of Saint Omer said late on Thursday.
They were patrolling the beach in all-terrain vehicles on Thursday morning when the migrants threw stones at them.
The windshield of one of the buggies shattered and then and swerved into soft sands "causing it to roll over", prosecutors told AFP.