4 hurt, 1 critical in SF apartment fire

October 17, 2013 10:06:43 AM PDT
A huge apartment fire in northern California leaves at least four people hurt and one person is in critical condition.

The fire burned through a four story 75-unit apartment building in Redwood City.

Flames ripped through the upper portions of the building and caused the roof to collapse.

The Red Cross is on the scene helping displaced residents.

It still too early to know what might have caused the fire.