Two firefighters were injured Saturday afternoon while battling a blaze inside a home in West Babylon, authorities said.

The fire tore through the second floor and attic of the Arnold Avenue home at about 4:15 p.m., Suffolk County police said.

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As firefighters battled the blaze, live power lines fell onto a fire truck, escalating the danger, police said. The fire was extinguished a short time later.

One firefighter injured his knee and was taken to a hospital for treatment, officials said. The other injured firefighter refused medical attention, police said.

Arnold Avenue was closed between Elwood Road and Arlington Road because of the fire, police said.