Boris Johnson pays tribute to police officer killed - BBC News
Prime Minister Boris Johnson has described the killing of PC Andrew Harper as "mindless and brutal".
Prime Minister Boris Johnson has paid tribute to PC Andrew Harper who was killed while attending a reported burglary.

PC Harper, of Thames Valley Police, died at about 23.30 BST on Thursday in Berkshire.

Ten people have been arrested on suspicion of murdering the police officer. The force said the males were aged between 13 and 30.