Police have closed the M1 in both directions after a suspicious object was found under a motorway bridge. 
In a statement, Thames Valley Police said: “We are urging the public to avoid the M1 as we are currently dealing with a report of a suspicious object. “It was found underneath one of the motorway bridges between Junction 15 and 14 at around 7.30am this morning.” We'll be bringing you the very latest updates, pictures and video on this breaking news story.