A police raid on a northern New Jersey building as part of a drug investigation also uncovered a cockfighting ring and dozens of roosters, authorities said.

Paterson police raided the building on 6th Avenue around 1 a.m. Wednesday. Eight people were arrested, and authorities seized marijuana, steroids, opioid painkillers and about $2,300 in cash.

While at the site, authorities discovered a cockfighting arena and found 84 roosters. They were taken to a sanctuary that cares for distressed animals.

Authorities say that animal cruelty charges will likely be filed in connection with the cockfighting operation, but that for now it remains under investigation.

“This latest round-up is proof positive that we will not tolerate fowl play in Paterson. I commend our police department for their exemplary efforts in this major operation,” Paterson Mayor Andre Sayegh said in a statement.