Two Spanish Fork sisters were injured in a bizarre accident that caused them to be dragged up and over a building.

At 6 p.m. Wednesday, Alyssa Garfield, 6, and Andrea Garfield, 10, were inside a Moonwalk - an inflated room where children can jump around, often present at carnivals and fairs. It was brought in to promote Skipper's Seafood 'n' Chowder House in Provo. Strong winds picked the Moonwalk up and flung it over the roof of the restaurant. The girls were trapped inside, a Provo police dispatcher said.Alyssa suffered serious head trauma, internal injuries and damage to her legs. She was flown by helicopter to Primary Children's Medical Center in Salt Lake City for immediate surgery. She was in critical condition Thursday morning.

Andrea suffered abdominal injuries and was taken to Utah Valley Regional Medical Center's pediatric intensive-care unit. She was admitted in critical condition but had improved to poor condition by Thursday morning.