Driving fast and allegedly under the influence of drugs, a young Mountain View woman caused a crash that sent two vehicles into buildings in downtown Boonville on Sunday, according to the CHP.

The 4:10 p.m. collision started with driver Raina Faigen's 2002 Subaru Outback hitting the back of a 2006 Ford F-150 on Highway 128, the CHP said.

Pickup driver Emiliano Soto-Valencia, 28, of Boonville was driving about 30 mph when the Subaru came up fast behind him.

The truck was pushed onto the south shoulder and into the front office of the Mendocino County Fairgrounds. The CHP didn't say if anyone was at the office at the time. A call to the fairgrounds office wasn't returned by mid-Monday afternoon.

The Subaru veered onto the north shoulder and hit a telephone pole, police said. It then wiped out support beams and knocked down an awning in front of Lauren's Restaurant.

Two passengers in the truck, including a 4-year-old, were taken to Ukiah Valley Medical Center with minor injuries.

Faigen, 20, was driving three teens: Kate Robbins, 16, of Watsonville; Alanna Reyes, 18, of Walnut Creek; and Sophie Drukman-Feldstein, 16, of San Francisco, said the CHP.

Her passengers weren't injured, according to an accident report.

Faigen went to the Ukiah hospital as a precaution and was arrested by officers on suspicion of driving under the influence of a controlled substance.

She was booked into the Mendocino County Jail in lieu of $30,000 bail.