(KRON) -- The California Highway Patrol Marin area office is investigating a solo vehicle crash on southbound Highway 101 Tuesday night. The crash happened south of Lucas Valley Road in Marin, according to CHP Marin in a social media post at 7:44 p.m. Photo courtesy of CHP Marin. Lanes 1, 2 and 3 were shut down as a result of the incident. The road was fully reopened by 8:20 p.m. The cause of the crash and whether drugs or alcohol were involved are not yet known. ...read more read less