Shots were fired by US service personnel and a suspect was arrested after a disturbance at RAF Mildenhall but police have not yet confirmed if the incident is being treated as terrorist-related.

Suffolk Constabulary confirmed the arrest as the base, which is used by the US Air Force, was put on lockdown amid reports of a car being rammed into a checkpoint.

The force said the suspect had been taken into custody.

He was said to have suffered cuts and bruises during the incident, which happened at around 1pm on Monday.

MORE: Shots fired at RAF Mildenhall after 'car tries to ram gate'Shortly before 4pm, a spokeswoman for Suffolk Constabulary was unable to confirm whether the matter was being treated as terrorist-related.

A Pentagon spokesman in Washington said: 'The security incident has been contained and a suspect has been apprehended.'

The lockdown ended at around 3.30pm, just under two hours after the incident began.

A statement on the base's Facebook page said: 'Lockdown has terminated on base and operations are returning to normal.

'We've concluded our combined US-UK response to this incident and we are continuing to support local authorities in the ongoing investigation.'

A member of staff at Jumppin Jacks Funhouse in Mildenhall earlier told the Press Association: 'All the American children playing here suddenly left, but we didn't hear anything or know why.'

The base has previously been identified as a potential target for terrorists.

In May 2016, Junead Khan was given a life sentence at Kingston Crown Court for planning a strike against American military personnel in Britain.

Khan, of Luton, used his job as a delivery driver to scout bases including Mildenhall and nearby RAF Lakenheath the previous year.

No other police forces are thought to be involved in the incident at this stage.