TEMPLE HILLS, Md. (AP) — One of two firefighters shot Friday night while making a welfare check in a Maryland suburb of Washington has died and another remains in serious condition, officials said.

John Ulmshneider, 39, died Friday night, according to Prince George's County Police Department spokeswoman Julie Parker. She said Ulmshneider was a 13-year veteran of the department.

Department officials said in a statement that volunteer firefighter Kevin Swain also was shot, and was in serious condition.

Firefighters and police had gone to the Temple Hills home after being called by a person concerned the individual inside might be suffering from a medical condition, Prince George's County police Chief Henry P. Stawinski III said at a news conference.

When they arrived on the scene, the person inside was unresponsive, so they decided to force entry, he said. As that was happening, the person inside fired several rounds, striking two firefighters and the person who had initially made the call for a welfare check.

Stawinski said that once officers got into the home, the gunfire stopped. He said no officers fired weapons.

"Will it ever end? God, I hope so," Prince George's Police Chief Henry Stawinski said.

Deputy Fire Chief Benjamin Barksdale said earlier Friday that both firefighters were both critically injured, and one was flown to a trauma center.

The civilian was not seriously injured, according to the police chief.

The person who was inside the home was in custody and cooperating with police, Stawinski said.

The identity of the person inside the home was not immediately available.

"The main thing that we ask for the men and women of Prince George's County are your prayers, your thoughts," said Prince George's County Executive Rushern Baker.