PASADENA — As part of a massive, county-wide parole and probation compliance sweep Wednesday dubbed “Operation Silent Night,” Pasadena police carried out 27 compliance checks, arrested six people and seized two guns, authorities said.

The operation targeted parolees and probationers throughout Los Angeles County, according to Pasadena police and county officials. The sweep as a whole included 158 compliance checks, 38 arrests and the seizure of 23 guns.

Over 100 local, state and federal law enforcement officers took part in the operation, officials said.

“The focus of the mission was to apprehend probationers or parolees with outstanding no bail warrants, most who have arrests or convictions for violent felonies,” Pasadena police officials said in a written statement.

Two operation command posts were set up in Pasadena, officials said, with another in Industry and another in Palmdale.

Those arrested in Pasadena were: Marcus Howz, 21, due to an outstanding arrest warrant; Charles Dillion, 68, on suspicion of being a felon in possession of ammunition; Marcel Branch, 38, on suspicion of being a felon in possession of a shotgun; Ormani Duncan, 19, due to a traffic warrant; Wallace Simmons, 60, on suspicion of violating parole; and John Davis, 40, on suspicion of possession of burglary tools. All are Pasadena residents.