Two construction workers were injured when a roof of a Leesburg church that is under construction collapsed Monday afternoon, according to Loudoun County Fire and Rescue spokeswoman Mary Maguire.

The two workers were on the roof of the building on Evergreen Mills Road shortly before 12:30 p.m. when the trusses — which provide structural support — collapsed, Maguire said.

“They rode the trusses down to the ground, about 30 to 40 feet,” she said.

One worker was pinned beneath the trusses, she said, and is currently being taken by helicopter to an area hospital. She declined to comment on his condition.

The other worker was not pinned, Maguire said, and is being evaluated at the scene to determine whether he needs to be taken to a hospital.

There were no other injuries reported in the incident, Maguire said.