Washington (CNN)A former CIA officer has been charged with unauthorized possession of classified material and conspiring to commit espionage, the Justice Department announced Tuesday.

The department alleges that Jerry Chun Shing Lee, a 53-year-old former CIA case officer and US citizen, was asked to trade information for money by two Chinese intelligence officers in 2010 and 2011 while he lived in Hong Kong.

The former CIA officer is believed to have helped China dismantle a US spy network in the country and identify informants who were later killed or imprisoned. The New York Times reported in January that the imprisonment or execution of a dozen Chinese nationals working for the US was “one of…