On Friday afternoon, a portion of the roof at WGAL in Lancaster, PA collapsed, forcing the staff to evacuate the building.

Yesterday, a crane was at the station along Columbia Avenue in Lancaster Township. A crew was hoisted in a basket to examine the damage and begin removing snow. It's still unclear when employees will be allowed to return.

The collapse happened around 3:20 p.m. Friday. Employees in the newsroom heard what was described as a "thunderous boom." A portion of the roof in an adjacent studio that is no longer in use had collapsed.

Staff called the fire department who responded and inspected the damage. Around 4 p.m., fire officials ordered about 100 people to evacuate.

Further inspection revealed that a concrete support beam and slab had shifted and dropped. As a result the entire roof of the building had been compromised.

The station was forced off air due to the collapse, but was given the all clear by engineers to return to the air yesterday evening.