PITTSBURGH (KDKA) — The city’s bomb squad was called to the University of Pittsburgh early Monday evening after a bomb threat was discovered inside the Chevron Science Center.

The building was evacuated as bomb-sniffing dogs search the facility.

University Police Chief Tim Delaney told KDKA’s Kym Gable a worker notified police after she found a threat written on a ladies room wall.

It stated, “There’s a bomb in the building. It’s going to go off at 8:29.”

The search turned up nothing.

Students who have classes in the Center told KDKA there was an incident last week where police had to tase a man after a disturbance in the building.

Police say the incidents are not connected.

Chief Delaney added, “This is risking a catastrophe. We’ve had similar incidents where we’ve criminally convicted someone on it.”

Stay with KDKA for the latest developments.

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