BOTH Forth bridges and the M90 motorway will be closed in both directions at 4pm after "exposed wire" and what's thought to be explosive materials were found next to the road bridge. 

Rail and road traffic will be halted for two hours as a controlled explosion will be carried out. 

A statement from Police Scotland said: "Police Scotland, Amey, the Forth Road Bridge and Traffic Scotland can confirm that officers will shortly close the M90 and the Forth Road Bridge in both directions. 

"The road is due to close at approximately 4pm for at least two hours.  All approaches will also be closed.

"This is following the discovery of materials believed to be used in the demolition process at the site of the new Forth road rridge (Queensferry Crossing). 

"Although there is no immediate danger to the public, a decision has been made to dispose of these materials with the assistance of the Explosive Ordinance Disposal Unit (EOD) and to close the road as a precaution during this time.

"The Forth Bridge will also close temporarily while the controlled explosion takes place.  We are working with British Transport Police and Network Rail to facilitate this. 

"Police are advising members of the public who wish to travel on this road to postpone or bring forward their travel plans as the road is expected to be closed between 4pm and 6pm. 

"These times are approximate and can be brought forward or pushed back."

Chief Inspector Irene Ralston of Police Scotland said:  “Exposed wires were discovered today at the Queensferry Crossing, and while this is poses no immediate risk to the public, as a precaution we are compelled to close the Forth Road Bridge and the M90.

“We would advise motorists to avoid the area between 4pm and 6pm and seek alternative routes. 

“We thank the public for their understanding at this time.”

Police Scotland will continue to update the public on Police Scotland Facebook and Twitter with developments, including information on any further road closures.