Islamabad, Dec 23 (IANS) Pakistan has rejected an investigation report by the US into last month's NATO airstrike that killed 24 Pakistani soldiers, a media report said Friday.

Geo News reported that Inter Services Public Relations (ISPR) rejected the findings of the US-NATO probe.

A statement termed the report as biased as well as lacking in key facts.

The Nov 26 airstrike on two border checkposts in Mohmand Agency left two dozen soldiers dead, sparking outrage in the country.

A probe by the Pentagon has concluded that the NATO attack was unintentional and stressed that "inadequate coordination" between the US and Pakistani security forces was to be blamed for the air strikes.

The alliance forces have "acted in self defence", the Pentagon said Thursday.

"The investigating officer found that US forces, given what information they had available to them at the time, acted in self defence and with appropriate force after being fired upon," Xinhua quoted a Pentagon statement as saying.