Part of the Westlink has been closed Motorway traffic has been brought to a standstill in Belfast as the police investigate a car that has been abandoned under a road bridge.
The M2, the M3 and the northbound carriageway of the Westlink have been closed, as have York Road, Dock Street, Brougham Street and Garmoyle Street.
It is the latest in a series of security alerts that have caused disruption across the city.
Several of them have been declared hoaxes.
Police are advising people travelling south towards Belfast on the M2 to leave the motorway at Fortwilliam Roundabout and travel along the Shore Road, Fortwilliam Park, Antrim Road and Clifton Street before rejoining the Westlink.
Those travelling north should use that route in reverse.
Stockmans Way off Stockmans Lane has now reopened after being closed due to a report of a suspicious object.
Another alert in the Royal Avenue area of Belfast has ended. A number of people had to leave a shopping centre.
There were also three bomb alerts in Newtownabbey.
A suspicious device found at Finaghy Road North in Belfast near the railway line also turned out to be a hoax.
This article is from the BBC News website. © British Broadcasting Corporation, The BBC is not responsible for the content of external internet sites.