A trooper from the Pennsylvania State Police Mansfield barracks was shot in the chest Tuesday afternoon during a routine welfare check at a home in Tioga County, FIRST News Now reported.

The gunman reportedly barricaded himself inside his home on the 1500 Block of Barney Hill Road in Nelson Township.

A standoff between the gunman and police was still ongoing as of 7:30 p.m. Tuesday evening, according to FIRST News Now.

The trooper was air lifted to a trauma unit from a landing zone at Elkland High School and was in stable condition as of 5 p.m. today, FIRST News Now reported.

"The trooper who was shot did not require surgery. He is receiving treatment for his injuries and is in stable condition," the Pennsylvania State Police reported on their official Twitter page.

A second trooper suffered a leg injury while fleeing the gunfire, and Lawrenceville crews and Valley Ambulance responded to treat him, according to FIRST News Now.

The incident reportedly began when three state troopers attempted to perform a routine welfare check on an Elkland man who had not been heard from in a couple of weeks. 

They knocked on the door and announced themselves but when no one answered, they attempted to make contact with the individual by entering the residence through an unlocked door, according to FIRST News Now.

They again announced their presence but the subject of the welfare check reportedly opened fire on the troopers, striking one of them in the chest, FIRST News Now reported.

Nelson Ambulance and Wellsboro medics were dispatched to the scene at 11:53 a.m.

Troopers from Lycoming and Bradford Counties, and the Special Emergency Response Team, also responded.

Clarkwood Elementary, R.B. Walter Elementary and Williamson High School were placed in secure mode as an extra precaution due to the shooting incident, according to FIRST News Now.

At this time, the Mansfield State Police barracks is asking for prayers for the trooper who was shot.