Federal prosecutors have filed a sealed criminal complaint against Edward Snowden, the former National Security Agency contractor who leaked a trove of documents about top-secret surveillance programs, and the United States has asked Hong Kong to detain him on a provisional arrest warrant, according to U.S. officials.

Snowden was charged with espionage, theft and conversion of government property, the officials said.

The complaint was filed in the Eastern District of Virginia, a jurisdiction where Snowden’s former employer, Booz Allen Hamilton, is headquartered and a district with a long track record of prosecuting cases with national security implications.