A Pennsylvania student was stabbed on Thursday and the high school locked down, WPVI reports.

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Officials said a 15-year-old girl was stabbed in the abdomen at Bensalem High School and taken to a hospital.

The teen’s condition was unknown as of Thursday afternoon.

Buses were to be delayed 20 to 30 minutes in connection with what authorities described as an “emergency situation.”

Bensalem is about 18 miles northeast of Philadelphia.