Three federal air marshals were chased out of a Lynwood restaurant after a crowd mistook them for immigration agents on Wednesday, according to the Los Angeles County Sheriff's Department. The air marshals were having dinner at a Korean barbecue restaurant when someone recognized them as Immigration and Customs Enforcement agents, according to deputies. The Sheriff's Department said the air marshals called for help, prompting dozens of deputies from two nearby stations to respond. The deputies separated the air marshals from the crowd and created a skirmish line between the two groups in the parking lot. Federal air marshals fall under the Transportation Security Administration (TSA), which is part of the Department of Homeland Security.