Dallas, Texas – A man entered an office building, shooting his boss before killing himself.

Via Fox News:

A man entered a Dallas office building Monday and shot his boss before killing himself, sources told local media.

Multiple sources, who were not identified, told WFAA that

the man targeted his boss in the attack. There was no immediate word on the victim’s condition.

The shooting unfolded on the seventh floor of the tower, located by the Lyndon B. Johnson Freeway, Fox 4 reported.

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Workers evacuated the building as SWAT team officers responded, the news station added. The building was later deemed safe by police but an officer was injured by debris, the Dallas Police Dept. said.

“I was on the phone with a customer, we heard shots,” a woman who was working in the building told Fox 4. “My boss directed everybody to get in a corner and get down low.”

The worker said “people started screaming” and a SWAT team burst into the office, telling everyone to get out.

“They had guns pointed and everybody had to come out of the office with our hands up,” she said.

At least one window at the tower was broken.

Two ambulances rushed to the tower, KTVT reported.