Marin Crash Snarls Traffic (Updated)

Update: Summit Avenue has been reopened in both directions, police said.

MILL VALLEY, CA — A Mill Valley collision Friday afternoon has triggered a traffic advisory, police said.

Summit Avenue between Magee and Marguerite avenues has been closed until further notice according to police.

Motorists are being asked to use alternate routes such as Tamalpais Avenue.

This is a developing story. Check back for updates.