A terminal at Orlando International Airport was evacuated and incoming flights were grounded on Saturday morning after a Transportation Security Administration officer jumped to his death, the police and witnesses said.

The officer, described by the Orlando police as a man in his 40s, had just clocked out of work before jumping from a balcony of the Hyatt Regency in the airport atrium about 9:30 a.m.

Jenny L. Burke, a spokeswoman for the agency, confirmed that an off-duty T.S.A. employee had fallen from a balcony inside the airport and died. “Our thoughts and prayers go out to the officer’s family, friends and everyone in our T.S.A. family,” she said.

The police said on Twitter that “preliminary information suggests an apparent suicide.”

The sound of the man crashing to the floor caused passengers to flee unscreened into a restricted area, Ms. Burke said. Crowds of passengers were being rescreened on Saturday afternoon. Officials said flight operations were starting to return to normal about 12:30 p.m. on Saturday. The Federal Aviation Administration issued a halt to inbound flights that was lifted at 11:30 a.m.