WASHINGTON — A security guard shot and wounded a man who forced his way into a local television station, the police said Monday, stoking renewed fears that journalists have become targets in a highly polarized political environment.

The shooting occurred about 3 p.m. at WTTG Fox 5’s building in Northwest Washington when the irate man kicked his way through two sets of glass doors to enter the lobby, the police said.

In the lobby, the man was confronted by a security guard employed by the station. The guard fired her weapon, striking the man apparently in the torso. The man was not armed, the police said. Nobody else was injured.

Normally, the doors can be opened only with a building pass or if a security guard buzzes in a visitor, said Dustin Sternbeck, a spokesman for the Metropolitan Police Department.