Federal action must be taken to stop the Chinese entities behind a burgeoning black market of marijuana across the United States, according to law enforcement and drug experts.

The House Homeland Security Subcommittee on Oversight, Investigations, and Accountability was briefed on the extent to which the Chinese Communist Party is aware of and funding illicit drug operations in the U.S., and lawmakers were implored to take swift action to wipe out the expansive criminal network.