U.S. authorities are trying to find out who stuffed 70 dead Siamese cats into seven large trash bags and dumped them onto a road in suburban San Antonio.

San Antonio television KABB reports the dead cats were found Thursday in the Guadalupe County town of Marion. The animals were all adults.

Guadalupe County Sheriff Arnold Zwicke says the cats appeared to have been kept in a freezer or refrigerator. They've been buried at a site in Guadalupe County. Marion is located 23 miles east-northeast of San Antonio.