The 18-year-old and a 16-year-old girl, both from Thatcham, were arrested on suspicion of assaulting an emergency worker.

A 15-year-old girl, also from Thatcham, was arrested on suspicion of racially aggravated public order and criminal damage.

Both girls have been released on bail and the man remains in police custody.

Police said the attacks took place after two neighborhood officers were alerted by a member of the public who reported his moped had been pushed and damaged.

Officers arrested a teenager on suspicion of criminal damage, but the teenager “became obstructive”, the force said.

“Another male was involved and an altercation ensued,” it said, adding the teenager was “arrested in connection with the criminal damage incident”.

Inspector Bill Sykes said: “This incident took place outside a cafe and we are aware that members of the public witnessed this incident.”

He appealed for anyone with information to contact the force.