AlQa'dah 05, 1436, August 20, 2015, SPA -- Britain and France announced new measures on Thursday to prevent undocumented migrants entering the Channel Tunnel, while stepping up joint police operations against the people-smugglers who profit from their desperation to reach Britain, according to Reuters. Both countries will contribute police resources to a shared "command and control" centre in the northern French port city of Calais, Britain's Home Office said in a statement. The new joint command will "find and disrupt organised criminals who attempt to smuggle migrants into northern France and across the Channel", it said.