TARENTUM, Pa. (AP) — Hundreds of sick and dying cats were removed from a fortress-like sanctuary Friday in a raid brought on by worried animal lovers and a former county worker who infiltrated with a hidden camera.

Hundreds, perhaps thousands, of dead cats were believe buried on the secluded 29-acre property known as Tiger Ranch Farm, about 20 miles northwest of Pittsburgh.

Owner Linda Bruno apparently meant well but lost control of the needs of the animals years ago, said Howard Nelson, director of the Pennsylvania Society for the Prevention of Cruelty to Animals, which organized the raid.

"I found her to be in denial of the condition of the cats," he said. "It's billed as a sanctuary, but no one person can take care of 750 cats."

Bruno, also known as Linn Marie, 45, was arraigned Friday on 13 counts of animal cruelty and neglect, but more charges were expected as subsequent cases were documented, Nelson said. She was in jail, unable to post $50,000 bond.