British police have arrested a man who apparently tried to ram his car through a checkpoint into a US air force base in central England.
Shots were fired by American service personnel and a suspect arrested after the disturbance at RAF Mildenhall, located 80 miles north of London.
The base was initially locked down as emergency personnel responded to the situation, but this was later lifted after police took control of the incident.
The man was said to have suffered cuts and bruises during the incident.
Britain's Ministry of Defence said it was aware of an incident and that police were taking a lead in the case.
A Pentagon spokesman in Washington said: "The security incident has been contained and a suspect has been apprehended."
Mildenhall is used by the United States to refuel US and NATO aircraft in Europe.
The 1,162-acre base, which houses about 3,100 military and an additional 3,000 family members, is set for closure after the US said it was going to move is operations from the base to Germany.
The base has previously been identified as a potential target for terrorists.
In May 2016, Junead Khan was given a life sentence for planning a strike against American military personnel in Britain.