Cameron on Afghan soldier deaths: 'Justice will be done'

The prime minister has vowed to do everything possible "to ensure that justice is done" after a rogue Afghan policeman killed three British troops serving in Helmand province.

Speaking in the House of Commons, David Cameron also paid tribute to the soldiers, two from the 1st Battalion Welsh Guards and one who served with the Royal Corps of Signals.

"These brave soldiers were demonstrating great courage to prevent Afghanistan once again becoming a haven for international terrorists", he said.