New Delhi, Feb 27 Afghan President Hamid Karzai on Saturday called up Prime Minister Dr. Manmohan Singh and promised a "full investigation" into the terror attack in Kabul that killed 17 people, including nine Indians.

"President Hamid Karzai today called the Prime Minister to express his condolences on the loss of Indian lives and injuries sustained by many others in the terrorist attack in Kabul on Feb 26," said a statement issued here by the Prime Minister's Office.

"President Karzai promised a full investigation into the attack. The Prime Minister conveyed India's outrage at the incident," it said.

While thanking the Afghan president "for the assistance being given", Dr. Singh also requested him "to ensure full security for Indian nationals in Afghanistan".

"The two leaders agreed to stay in touch with each other," the statement said.