ANKARA 

A probe continues on Wednesday after at least three people were killed and six injured when a driver plowed through a homeless encampment in downtown San Diego, California.

Craig Voss was arrested on the scene after he drove his vehicle on the sidewalk on Monday through a tunnel underneath a community college campus, according to San Diego Police Chief David Nisleit.

Voss, 71, faces three counts of vehicular manslaughter, five counts of causing great bodily harm and driving under the influence, known as DUI.

The crash highlights the risk for the homeless population in California -- the third-largest US state with a homeless population of more than 150,000.

That number has increased because of the economic and health care struggle during the coronavirus pandemic.