ORLANDO, Fla. (AP) — Police on Sunday were investigating vandals' spray-painting of dozens of city vehicles here, some with disparaging messages about presumptive Democratic presidential nominee Barack Obama.

Authorities think the vandalism to about 60 vehicles, estimated at $10,000 in damage, was done Saturday afternoon, police spokeswoman Sgt. Barbara Jones said.

The vehicles were parked across from City Hall and investigators said culprits tagged messages including "Obama smokes crack" and a racial epithet.

They even left business cards on the vehicles that disparage both the Illinois senator and his rival, Republican John McCain. The cards voice support for Sen. Hillary Clinton, Obama's former opponent.