Eleven Afghan soldiers were killed in an assault on a Kabul military base on Monday, the fourth attack in Afghanistan within 10 days.

Isil yesterday claimed the attack, which began at 5am as five militants armed with rocket-propelled grenades and automatic rifles stormed the well-defended Marshal Fahim military academy.

At least 16 soldiers were wounded in the attack, which lasted over five hours and ended with four of the militants being killed - two by their own suicide vests - and one arrested.

Security officials at the scene said the gunmen had used a ladder to get over a wall into the post.

"The Afghan National Army is the country's defence force and makes sacrifices for the security and well-being of the people," the ministry of defence said yesterday. President Ashraf Ghani denounced the attack on Monday.