Someone in Pakistan’s government or intelligence agency “had to know” Osama bin Laden was hiding in that country, the chairman of the House Homeland Security Committee contended Tuesday.

"I believe that somebody in their government, somebody in their intelligence apparatus, somebody in their military apparatus had to know that bin Laden was there and had to be providing some support for him,” Rep. Pete King (R-N.Y.) told Fox News.

"It's impossible to believe that with the sophisticated intelligence agency and military apparatus that Pakistan has, that they could have the most notorious criminal in the world living right in front of them and not know about it," he said. 

After President Obama’s announcement Sunday that the U.S. had found and killed bin Laden, lawmakers on the left and right have questioned how the al Qaeda leader could have gone undetected in a compound just 30 miles from the Pakistan capital.

Obama's top counterterrorism adviser, John Brennan, this week called it "inconceivable" that Pakistan was not providing some kind of "support system." Brennan described bin Laden as living there "in plain sight."

Still, many lawmakers caution that U.S.-Pakistan relations are complicated and that the country is an important ally. The U.S. has provided billions in aid to the country since the 9/11 attacks.