A man has been arrested outside Buckingham Palace after officers responded to reports of a suspicious vehicle.
The Metropolitan police said the man was held on suspicion of a public order offence.
Officers were called to Birdcage Walk, at the junction with Spur Road in central London, shortly before 8am on Monday morning.
A Scotland Yard spokesman said: “A vehicle was stopped and a man in his early 30s arrested on suspicion of a public order offence. The vehicle he was driving, a white Ford Transit, was deemed suspicious.
A police cordon put in place while the vehicle was assessed has been lifted and traffic is now allowed on affected roads.