BUTTE, Mont. -

Police in Butte say a 20-year-old motorist appears to have passed out after inhaling from a can of compressed air and crashed into three parked cars.

Police tell the Montana Standard that William Connors of Butte at about 10 p.m. Thursday lost control of a 1997 Mercury Sable heading north on Harrison Avenue and veered across the southbound lane and struck vehicles in a parking lot.

Police say they found keyboard cleaner in the vehicle.

Connors faces misdemeanor driving under the influence and careless driving charges.

Police say 20-year-old Alexander Hardcastle of Butte was a passenger. Police say he was taken into custody on suspicion of misdemeanor possession of toxic substances.