by: Staff Posted: Aug 29, 2016 / 04:13 PM EDT Updated: Aug 29, 2016 / 04:35 PM EDT SHARE Fire crews are currently on the scene of a multi-unit house fire in Altoona. Crews were called out to the fire shortly after 3:30 p.m. Fire has engulfed two of the four units at 402 6th Street No one is believed to be there.