Officers are on the scene of a fatal traffic collision involving a vehicle and a pedestrian that occurred at 3:55 a.m. near the intersection of Ventura Road and Bay Blvd. Traffic is closed for N/B Ventura Road at Channel Islands Blvd and for S/B Ventura Road at Bay Blvd. Motorists traveling in the surrounding area can expect significant traffic delays and are advised to seek alternate routes. A news release with further details of the collision will be completed later this morning.