Kabul: Militants on Monday raided a military academy in Kabul, the Afghan capital, killing 11 soldiers, the fourth major attack in a spate of violence over the past nine days that is putting a new, more aggressive US strategy under the spotlight.

Five gunmen attacked an army outpost near one of Afghanistan's main military academies on Monday and 11 soldiers were killed and 15 wounded before the attackers were subdued, the defence ministry said.

The Islamic State claimed responsibility for the attack near the Marshal Fahim military academy on the city's western outskirts, in which four of the gunmen were killed and one captured.

It came two days after an ambulance bomb in the city centre killed more than 100 people and just over a week after another attack on the Hotel Intercontinental, also in Kabul, killed more than 20.

Both attacks were claimed by the Taliban.

Ministry of defence officials said the five militants, armed with rocket-propelled grenades and automatic rifles, attacked the outpost near the well-defended academy just before dawn. "The Afghan National Army is the country's defence force and makes sacrifices for the security and well-being of the people," the ministry said. Reuters