"The government of Pakistan has spoken very powerfully to this and it's certainly our expectation that they'll treat this exactly the way they've said they would," State Department Spokesman John Kirby said yesterday.
Pakistan has said it is working on the "leads" provided by India on this attack.
Describing terrorism as a "shared challenge" in South Asia, the US also asked all countries in the region to work together to disrupt and dismantle terrorist networks and bring to justice the perpetrators of the Pathankot terrorist attack.
"We have been clear with the highest levels of the government of Pakistan that it must continue to target all militant groups," Kirby said.
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The government of Pakistan has said publicly and privately that it's not going to discriminate among terrorist groups as part of its counter-terrorism operation, he said.
"So this is a shared challenge that we all face in the region and we in the United States want everybody to treat it as a shared challenge," Kirby said, adding that the US has strongly condemned the terrorist attack on the Indian Air Force (IAF) base in Punjab's Pathankot.
He said the US has for a long time talked about the continued safe haven issues there between Afghanistan and Pakistan and certainly between India and Pakistan.
"We're mindful that there remain some safe havens that we obviously want to see cleared out. And we continue to engage with the government of Pakistan to that end. And again, I would point you back to what the government of Pakistan itself has said and acknowledged that it's not going to discriminate among terrorist groups and it will continue to take the fight," Kirby said.