A vehicle reportedly drove into the station office at Edmonton Police Station in North London, Metropolitan police said on Wednesday.
One person was detained in connection with the incident. London Ambulance Service and London Fire Brigade are also working at the scene.
According to a witness at the scene, who shared a video online, the man was trying to set the street near the police station on fire but he was arrested.
There has been no further information on whether anyone was injured in the incident, or concerning the possible motives of the perpetrator.