Authorities are investigating after several pit bulls were found dead along a south Alabama roadway.

WKRG reports that a station viewer said several pit bulls were first found in Baldwin County in September along County Road 16 and Sherman Road.

In each case, the dog was found dead and left in the same spot. Two more dogs were found dead again this week along the same road.

One dog had a collar and leash.

A report was filed with the Baldwin County Sheriff’s Office. No arrests have been made.

A resident of the area told the station that she believes the animals had been strangled, but investigators say they’re unsure how the dogs died.