Federal prosecutors have charged NSA leaker Edward Snowden with espionage and are asking Hong Kong authorities to arrest him, The Washington Post reported.

In a sealed criminal complaint, prosecutors charged Snowden with espionage, theft and conversion of government property, according to the Post.

Snowden, 29, a former employee of Booz Allen Hamilton and the CIA, revealed the existence of two previously unknown surveillance programs run by the NSA.

Under one program, the NSA is sweeping up information related to every phone call being place on the Verizon network — an effort supported by an order from the Federal Intelligence Surveillance Act (FISA) court. A separate NSA program, dubbed PRISM, has been gathering internet data from foreign users.