M P Singh and C Govindaswamy were killed on the spot when the suicide bomber driving a vehicle rammed into the construction workers near Minar area in Nimroz province at around 9 am.

Bishram Oroan, Vikram Singh, Muhammad Nazin Khan, Anil Kumar Thampee and Mayaram were injured in the attack, external affairs ministry spokesman Navtej Sarna said.

The injured have been moved to Zaranj for medical attention and arrangements were being made for immediate evacuation of those wounded and bodies of the deceased, he said.

An AFP report from Herat stated Yousuf Ahmadi, a man claiming to be Taliban spokesman, said the Taliban first detonated two mines and then a suicide bomber blew himself up.

The Afghan authorities said a third suspected attacker on the convoy of road construction workers was captured with an explosive-filled jacket.

“There was a suicide attack carried out by two bombers against Indian road workers who were working on a bridge in Nimroz province,” provincial governor Ghulam Dastgir Azad said.

Nearly 400 BRO personnel are engaged in construction of a crucial 218-km highway between Zaranj and Delaram in Afghanistan as part of India's assistance programme for reconstruction of the war-torn country.

Sarna underlined New Delhi's "determination to continue to work with the Afghan people and government for the rehabilitation and reconstruction of Afghanistan and the well-being of the Afghan people."

Conveying the government's deepest condolences to the families of the victims of the terror attack, Sarna said families of the deceased and wounded were being contacted for immediate disbursement of compensation and insurance. — PTI