A Bronx man has been convicted of operating a secret Chinese police station in Manhattan that federal prosecutors say was used to monitor Chinese dissidents living in the United States.

Federal prosecutors announced the conviction Wednesday, though they did not immediately release additional details about the defendant's identity or the specific charges he faced. The case represents part of ongoing U.S. law enforcement efforts to combat what officials describe as Chinese government attempts to intimidate and surveil Chinese nationals and Chinese-Americans on American soil.

The Manhattan facility was allegedly part of a broader network of unofficial Chinese police stations that have been established in various countries around the world. U.S. authorities have previously expressed concern that such operations violate American sovereignty and are used to pressure Chinese dissidents to return to China or to cease their activism.

The conviction comes amid heightened tensions between the United States and China over various issues including trade, technology, and human rights. U.S. officials have increasingly focused on what they characterize as Chinese efforts to extend their law enforcement reach into American territory through unofficial channels.

Further details about the sentencing phase and potential penalties were not immediately available from federal prosecutors.