Mexican police Wednesday found the decapitated and dismembered bodies of at least 15 people in two vehicles abandoned on a highway in Mexico's Pacific coast state of Jalisco, authorities said.

Earlier, local police sources said 10 bodies were found in the small town of Ixtlahuacan in Jalisco.

Initial reports said police acting on a tip-off found the bodies in two abandoned vans parked alongside a motel on the highway to Chapala, a popular weekend retreat only a few kilometers from the state capital of Guadalajara.

Authorities also found a note signed by an organized crime group called the Milenio-Zetas.

The bodies were taken to Jalisco's Institute of Forensic Science in Guadalajara.

Mexico's second-largest city, Guadalajara saw a similar mass killing in November 2011, when police found the remains of 26 bodies stuffed into three vehicles.

More than 47,000 people have died since Mexico's President Felipe Calderon came to power in 2006 and declared a war on organized crime and drug trafficking.