TEN suspects between the ages of 13 and 30 remain in police custody this morning after a policeman was killed while investigating a burglarly in West Berkshire.

PC Andrew Harper, a 28-year-old roads policing officer who had recently got married, died after he was struck by a vehicle and dragged along the road. 

The incident happened shortly after 11.30pm on Thursday night near the village of Sulhamstead.

Thames Valley Police said 10 boys and men aged between 13 and 30 were arrested on suspicion of murder and held in custody overnight at various police stations in the force area.

Witnesses watched officers descend on Four Houses Corner, a council-operated travellers' site close to the scene. 

Yesterday police were seen searching the site, based around three miles away.

A source told The Telegraph: “Everyone was ordered out of the caravans, including the women and children."

A post-mortem examination is taking place to establish the cause of death.

One witness, who did not want to be named, told the Daily Mail that PC Harper's colleague was crouched over his body which was lying on the lane.

They added: "The officer's crewmate was shouting, saying 'stay with me, stay with me. Keep breathing'."