The United States is holding back some military aid to Pakistan, President Barack Obama's chief of staff confirmed on Sunday, after a New York Times report said $800 million was being withheld.

"They've taken some steps that have given us reason to pause on some of the aid which we're giving to the military, and we're trying to work through that," William Daley told ABC's "This Week With Christiane Amanpour."

US Secretary of State Hillary Clinton had warned last month that the United States could slow down US military aid to Pakistan unless it took unspecified steps to help the United States.

This video is from CNN, broadcast Sunday, July 10, 2011.

With AFP.