A firetruck in Prince George's County almost fell on its side after a sidewalk collapse. ( Prince George's County fire department)

Two firefighters were injured and taken to a hospital after a sidewalk collapsed under a firetruck, nearly toppling the truck onto its side.

The incident happened Saturday evening and involved a Riverdale Fire Department truck that had a tower on it.

Mark Brady, a spokesman with the Prince George’s County fire department, said the truck was responding to a house fire and was “wetting down smoldering hot spots.” Two firefighters were in the bucket of the tower part of the truck and were moving the equipment to try to put water on the remaining hot spots. There was no water flowing at the time in hoses, he said.

Then the concrete sidewalk underneath the truck and equipment that was used to support the tower gave way. It collapsed into concrete and mud, Brady said. The bucket fell over with the two firefighters inside and “abruptly hit the ground,” according to Brady.

The firefighters sustained minor injuries and are expected to be treated and released, according to Brady.

Correction: An earlier version of this story said the incident happened Monday.