LOS ANGELES (CBSLA.com) — Police activity has shut a portion of a busy thoroughfare in downtown Los Angeles, snarling traffic for miles.

The incident was unfolding on the 110 Freeway near Sixth Street Wednesday night and was causing a massive backup as several lanes were shut.

TRAFFIC

For updates on traffic conditions, tune-in to KNX 1070 NEWSRADIO or visit cbsla.com/traffic.