Video: Master stream knocks ladder off of roof at Minneapolis house fire. Firefighter slightly hurt.

At about 1:40 in this video (shot by Amy Koppel) of a multi-family home burning in Minneapolis it appears a master stream knocks a ladder off the roof onto the D side of the building. It is difficult to see. The description with the video says one firefighter was hit in the head. KMSP-TV reports:

One firefighter was injured when water pressure from the hose knocked a ladder on top of him. He is expected to be okay. No other injuries were reported.

Below is earlier video from the fire on 1st Avenue near East 25th Street in the Whittier neighborhood. The fire was reported around 1:00 PM. Here's more from KMSP-TV:

Emergency crews said the fire started in the basement and worked its way up through the walls until it got into the attic. The cause of the fire is under investigation, but it's believed to be electrical.