Pakistan has raised fresh concerns to the US about Afghan refugees and fighters fleeing across the border to escape a major US-led offensive in neighbouring Afghanistan.
Prime Minister Yousuf Raza Gilani raised the matter in talks with US special representative for Afghanistan and Pakistan, Richard Holbrooke, during talks in Islamabad, his office said.
About 15,000 Afghan, US and NATO troops are conducting Operation Mushtarak (Together) in southern Afghanistan against about 400 to 1,000 Taliban fighters.
The operation has been described as the biggest assault since the 2001 US-led invasion.
The offensive is targeting a major drug-producing area in Helmand province, which borders Pakistan's insurgency-rife Baluchistan province.
Northwest Pakistan is a stronghold of Taliban and al-Qaeda-linked fighters, hundreds of whom fled the 2001 US-led invasion of Afghanistan.
Mr Gilani expressed hope that 'Pakistan's concerns on account of spillover of refugees and militants from Helmand into southwestern Baluchistan and the northwest will be kept in view by the US and ISAF forces,' his office said.
He called for 'enhanced coordination and cooperation' with Pakistan's armed forces to deal with the situation.
Pakistan and the US are scheduled to hold talks later this year to discuss and bolster cooperation further in security and counter-terrorism.
Mr Gilani underlined 'the imperative of the strategic dialogue for building trust to remove the misperceptions or misgivings prevalent on both sides'.
