Ten people have been arrested on suspicion of murder after a police officer was killed while responding to a reported burglary in Berkshire.
PC Andrew Harper, from the Roads Policing Proactive Unit based at Abingdon Police Station, was on duty when he died.
Thames Valley Police said a 13-year-old boy was among those being held in custody at different police stations across the region.
The force said PC Harper died following a “serious incident” at 11.30pm on Thursday near the A4, Bath Road, between Reading and Newbury.
It occurred at the crossroads off Ufton Lane and Lambdens Hill, near to Sulhamstead which remain closed.Advertisement
Images from the scene showed a police cordon in place with forensic teams at work.
Andy Fiddler, from Thames Valley Police Federation, said the death of PC Harper was “totally devastating”.