- US blocks Pak military reimbursements for fiscal year 2016: Official
- Decision affects $50 million in payments under Coalition Support Fund
- Islamabad has not taken sufficient action against Haqqani network: US
"The funds could not be released to the Government of Pakistan at this time because the secretary could not certify that Pakistan has taken sufficient action against the Haqqani Network per the requirement in the FY 2016 National Defense Authorization Act," Adam Stump, a Pentagon spokesman, told Reuters.
The decision comes as President Donald Trump's administration is exploring potentially hardening its approach toward Pakistan to crack down on terrorists launching strikes in neighbouring Afghanistan.
"This decision does not prejudge the conclusions of the White House review of South Asia strategy, which is still ongoing," Stump said.
Relations between the two countries have been frayed over the past decade, with US officials frustrated by what they term Islamabad's unwillingness to act against Islamist groups such as the Afghan Taliban and the Haqqani network.
This is not the first time the Pentagon has decided not to make military reimbursements. Last year, the Pentagon withheld $300 million in reimbursements.
Out of remainder, $300 million had already been reprogrammed for other purposes, but had not been previously reported. Mattis' latest decision affects the remaining $50 million.
The amount is under the Coalition Support Fund (CSF), a US Defence Department program to reimburse allies that have incurred costs in supporting counter-terrorist and counter-insurgency operations.
(Reporting by Idrees Ali; Editing by Jeffrey Benkoe and Andrea Ricci)