One person was injured on Wednesday after a shooting at the entrance to the National Security Agency’s campus at Fort Meade in Maryland.

A spokeswoman for Fort Meade said that the episode had occurred at the Canine Road gate. Fort Meade’s Fire and Emergency Services unit responded and one person was taken to an area hospital. The episode continues to be under investigation, the spokeswoman said.

The White House said that the president had been briefed on the shooting, and offered thoughts and prayers to everyone affected.

The N.S.A. said in a statement that its police force and local law enforcement were responding, that the situation was under control and that there was no ongoing security or safety threat. The F.B.I. said that it was aware and that it was sending personnel to help.

The Associated Press reported that one person was being held after the shooting. Pictures from the scene showed a black S.U.V. with its trunk open being held near the gate.

Highway 32 near Fort Meade…

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