LOS ANGELES — Almost 70 citations were issued in a combined operation by police and Union Pacific to crack down on grade-crossing violations, the Ventura County (Calif.) Star reported.

For three hours on Wednesday morning, a Union Pacific locomotive triggered grade crossing devices in the Oxnard, Calif., area, with Oxnard, Amtrak, and Union Pacific police, along with Los Angeles County Sheriff’s officers, citing those who tried to beat or otherwise pass around the activated crossing gates. By the end of the operation, 35 drivers had been cited, 33 people were cited for suspicion of trespassing, and one vehicle was impounded, the Star reports.

Crossing violations for drivers carry a $471 fine. Those cited on the trespassing charge, a misdemeanor, must appear before a judge.

The full Star report, including photos and a video, is available here.