He was killed while on a foot patrol on Tuesday, when an improvised-explosive device (IED) exploded, Captain Roy Hermkens, a spokesman for the Nato-led International Security Assistance Force (ISAF), said.

Violence rising

The attack came hours after an IED killed a US soldier and a suicide bomb attack killed two British soldiers, as well as two Afghan soldiers.

Violence in Afghanistan is at its worst level this year, with ill-trained and badly-equipped Afghan police bearing the brunt of attacks.

Fifteen Afghan policemen were killed on Monday in two different parts of Afghanistan in a series of attacks.

In one of those cases, three policemen attacked their colleagues, killing seven as they slept.

Barack Obama, the US president, this month ordered that 30,000 more US troops be sent to Afghanistan to help reverse recent gains made by fighters loyal to the Taliban and al-Qaeda.

Washington and its Nato allies have 110,000 troops in Afghanistan and say that they are aiming to train Afghan forces in order to hand over full control of the country’s security.