Bernard Cazeneuve, the man who oversaw the destruction of the Calais jungle, has been named French prime minister after Manuel Valls vacated the post on Monday to run for the presidency.

Mr Cazeneuve, who as French interior minister oversaw security forces' reaction to a string of jihadist attacks that have killed more than 230 people over the past two years, will take control of the Socialist government until legislative elections in June.

This will make him the shortest-running prime minister in modern French history.

Seen as a staunchly loyal to president François Hollande, who announced last week that he would not be running for re-election, Mr Cazeneuve was reportedly at one point mooted to take up a "super-ministry" to include his former job as top cop and head of the executive.

In the event, Bruno Le Roux, leader of the Socialists in the lower house of parliament, will take over the interior portfolio.