A number of roads on the outskirts of Derry have been closed due to a security alert.
Police are advising motorists that the Letterkenny Road has been closed at its junction with the Lonemoor Road and the Mullenan Road.
The Braehead Road has also been closed at its junction with the Letterkenny Road and the Crevagh Road.
Heavy goods vehicles (HGVs) are being diverted towards Queen’s Quay from the lower deck of the Craigavon Bridge.
Motorists are advised to seek alternative routes.
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