At least four people are understood to have died after a gunman opened fire at a migrant camp in northern France.

Police have confirmed "multiple murders" were committed at the camp near Dunkirk - while Sky News reports that the incident took place in nearby Loon-Plage.

A fifth person was also killed outside the migrant camp.

A man claiming to be the gunman has handed himself into police, according to French media.

The shooting happened in and around Dunkirk - one of the key sites from where migrants depart to Britain

Armed police had been called to the camp on the town's Mardyck Road on Saturday afternoon to reports of a "lone gunman killing people", one investigating source said, according to the Mail.

He added: "Four people were shot dead around the camp at Mardyck - two security guards and two migrants."

The shooter's first victim is said to have been in his 30s, and was "killed in front of his relatives, in what looked like a targeted assassination", the source said.

The gunman and his victims' identities have not immediately been released, Mayor of Loon Plage Eric Rommel said.