KABUL, Feb 2: A suicide attacker rammed an explosives-filled car into an army convoy in south eastern Afghanistan, killing three Afghan soldiers and a road worker, the defence ministry said on Thursday.

The attack in Khost province late Wednesday was the latest in a spate of more than 20 such blasts in the past four months, pointing to a change of tactics in an insurgency.

Three soldiers were also wounded after the attacker drove the vehicle into the Afghan army convoy in Khost’s Bak district and set off the deadly blast, defence ministry spokesman Gen Mohammad Zahir Azimi said.

“Three soldiers and one civilian were killed and three soldiers were wounded in the car bomb suicide attack,” he said.

The soldiers had been providing security for a road construction project, a local police officer said.

A remote-controlled bomb was detonated on Wednesday near another army convoy, this time in Kandahar. It damaged a vehicle but caused no casualties, Azimi said. Nine suspects were arrested.—AFP