Twelve people were arrested and 10 cars were seized in an undercover drag racing operation that took place last month in Suffolk County.

Suffolk officials announced the arrests Friday and said that 27 summonses were issued. The 12 men who were arrested were between the ages of 19-29.

Suffolk police say there were 75 cars racing on Nov. 10 on East Industry Court in Deer Park. They say 100 cars took part in a drag race on Nov. 15 on Allen and Adams boulevards in East Farmingdale.

Each event featured cars that were modified, such as reprogrammed computer chips and replacing some of the metal with carbon fiber to increase speeds.

Suffolk County Police Commissioner Geraldine Hart says, "attendees kept out an eye for law enforcement" and would scatter before their arrival.

"There were approximately 100 cars on site during some of the most recent races with both drivers and spectators present," she said.

Suffolk police say they caught on to the scourge of illegal street racing early on in the pandemic when highways had much less traffic. They say the racers then took to off-site industrial areas to avoid police.

“These drivers do not know each other. They are car buffs that connect via social media and oftentimes, the races are organized quickly,” said Hart.

County Executive Steve Bellone said the message sent by the arrests is “clear.”

“'Fast and Furious'-style racing is illegal and will not be tolerated in Suffolk County,” he said.