BERKELEY (CBS SF) — A student was injured Tuesday afternoon in a lab explosion on the campus of the University of California at Berkeley, police said.

A UC Berkeley graduate student was working in Hildebrand Hall at about 3:30 p.m. when the explosion occurred.

The student was wearing safety glasses but was taken to a hospital for injuries to her forehead.

The student was working with nitrogen when apparently overpressurization occurred, causing a glass chamber to shatter and hit her in the face, according to police and the Office of Environment Health & Safety.

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