The contents of a van discovered parked in a Miami-Dade, Fla., neighborhood earlier this week included horse remains, according to Miami-Dade Police. The investigation into the incident is ongoing.

The probe is the latest investigation into a series of incidents involving the slaughter of horses for their meat. Since January 2009, the butchered remains of at least 22 horses have been found in Miami-Dade County. Two horses were also discovered dead and mutilated in a field in nearby Miramar, Fla., in May 2009.

Police discovered the blood-smeared white van on Wednesday after a tipster reported seeing a suspicious vehicle parked near his home. Officers subsequently found containers of suspected horsemeat inside the vehicle.

Further investigation revealed that the van contained two coolers filled with meat and a bag containing horse legs, said Miami-Dade Police Public Information Officer Det. Edna Hernandez. A horse carcass was later located elsewhere