A gas leak at a Bucks County plant prompted officials to tell residents within a half-mile of the facility to shelter in place Monday for more than two hours.

Airgas Inc., said the leak occurred about 7 a.m. in a cylinder of fluorine in a contained room with a scrubber system at the company’s Scott Medical Products cylinder fill plant on the 6100 block of Easton Road in Plumsteadville.

“One employee was decontaminated on scene, and was taken to the local hospital and released after an evaluation, Airgas said in a statement.

No other injuries were reported.

Officials asked residents within a half-mile of the plant to shelter in place at about 8 a.m. before declaring the situation under control and lifting the order at about 10:15 a.m.

Airgas said the shelter-in-place request was made “in an abundance of caution” and not due to any imminent threat.

An investigation will be conducted to determine the cause of the leak, which Airgas employees and emergency responders worked together to contain.