The bodies of two young boys and their father were discovered at the foot of cliffs on the south coast an hour before their mother was found dead more than 80 miles away.

Latest: A chemical cloud which forced coastline evacuations across East Sussex in England on Sunday is "very unlikely" to have floated over from northern France, authorities said.

People on the south coast of England have been warned to stay away from beaches and to keep doors and windows closed due to a chemical 'haze' in the area.