POLICE believe they have foiled yet another dissident terror attack during a covert security operation.
Two men were detained after police are said to have “rammed” a car on the Northland Road in Derry city centre around 8pm.
It is believed police have recovered at least one gun at the scene.
One suspect was seen being handcuffed by police and put into a white forensic suit before being taken away to the serious crime suite in Antrim for questioning.
There are also reports from the scene that an envelope or package may have been thrown from the car.
The Northland Road has been closed and police have tasked Army technical officers to the scene following the discovery of a suspicious object in the car.
Last month, during a covert operation, police stopped a white van Letterkenny Road coming from the direction of Donegal which was being followed by a motorbike.
Inside the van, police found mortar tubes and the roof had been cut back.
The PSNI believed the target of the attack was Strand Road police station.