Islamabad: Terming as "unfortunate" Prime Minister Manmohan Singh s comments that Mumbai attacks must have had support of some Pakistani official agencies, Islamabad today said the two sides should not indulge in a "blame-game".

Mahmud Ali Durrani, Advisor to the Prime Minister on National Security, said he believed Singh's comments were "unfortunate".

Both countries should not enter into a "blame-game" and India should let Pakistan complete its investigations into the Mumbai attacks, Durrani told Dawn News channel.

He pointed out that Pakistan has already stated that it will not spare anyone found to be involved in the attacks.

The Foreign Office is also expected to formally respond to Singh's comments, official sources said.

Addressing a conference of chief ministers in New Delhi to discuss India's internal security situation, Singh accused Pakistan of using terror as an instrument of state policy.

"On the basis of the investigation carried, (including by agencies of some foreign countries whose nationals were killed), there is enough evidence to show that given the sophistication and military precision of the attack, it must have had the support of some official agencies in Pakistan," he said on the Mumbai terror strikes.
Source : PTI