California wildfire 'could get worse before it gets better'

Wildfires already well on their way to becoming the deadliest and most destructive in California history could gain momentum today and erase even the modest gains firefighters have made.

Steady winds with gusts up to 45mph (72kph) with nearly non-existent humidity are expected to descend on the areas north of San Francisco where at least 23 people have died and at least 3,500 homes and businesses have been destroyed.