A 10-year-old boy driving a stolen van was apprehended on Highway 101 near Sausalito with his 14-year-old passenger as they fled St. Vincent's School for Boys in San Rafael, police said.

The boys were arrested shortly after 6 a.m. Sunday after Marin County sheriff's deputies spotted the van, driven by the 4-foot-tall 10-year-old, traveling south near Marin City, sheriff's Lt. Barry Heying said.

The boys were pulled over at Spencer Avenue near Sausalito, arrested on suspicion of vehicle theft and transferred to Marin County Juvenile Hall.

"Runaways are not uncommon out there at St. Vincent's, but it is uncommon that they steal a vehicle," Heying said.

The boys obtained keys to the van from a school staff office, which they gained access to by removing a window pane, Heying said.

"They even took the trouble to replace it afterwards," he said.

The runaways were reported to school staff by another student Sunday morning, Heying said. Staffers notified authorities after the school van was spotted leaving the campus, he said.

St. Vincent's, situated east of Marinwood, is a 60-bed residential school and treatment center for troubled boys ages 7 to 19. It is run by Catholic Charities CYO.

School officials could not be immediately reached for comment.