Armed officers fire at car in firearms arrest on A27
Armed officers from the Metropolitan Police have stopped a car and arrested a man in East Sussex on suspicion of possessing a firearm.
The Met said the operation by Trident Gang Crime Command took place on the A27 Lewes bypass at about 15:30 GMT.
A spokeswoman said no shots were fired but "Hatton rounds" were discharged into the car tyres.
A suspected firearm was recovered. The arrested man is in custody at a police station.
There were no reports of any injuries.
Sussex Police said the force was aware of the incident, which has caused long delays on the A27.
Hatton rounds are used to blow open door locks and hinges, destroying an object before dispersing into powder.
Police said a fire in an empty house in Rottingdean added to the severe disruption to rush hour traffic, which built up eastbound back to the A23.
The A259 was closed while 30 firefighters tackled the blaze in Marine Drive.