A shooting at the UC Berkeley's Haas School of Business sent students scrambling for cover.
The shooting happened at 2:15 p.m. inside a computer lab, according to NBC Bay Area's Jodi Hernandez. Hernandez said the person who was shot walked into the lab with a gun.
The shooting did not appear to be related to the Occupy Berkeley protests blocks away at Sproul Plaza.
NBC Bay Area anchor Diane Dwyer teaches at the Haas School of Business. Dwyer said a woman noticed the man had a gun in his backpack as she rode with him on an elevator and told UC co-worker Lyle Nevels. The two of them starting searching the building thinking something was wrong. They found the man in question in the computer lab and called police. While they waited for police, Nevels quietly went into the room and sat in the back, according to Dwyer. When police arrived, Nevels said he could hear police saying "Put down your gun. Put down your gun." Then three or four shots rang out.
Dwyer also said at least one of the bullets went through the computer lab wall and into the office of another Cal staff member.
Several students in the area dropped to the ground and were seen crawling out of the area. No one but the unidentified man with a gun was hurt.
UC Berkeley police Chief Mitch Celaya said when the officers made contact with the man, he pulled a firearm out in a threatening manner. He said police ordered him several times to drop the weapon, and one officer, fearing for his life, opened fire.
Chancellor Robert Birgeneau said there were students between the gunman and the officers at the time of the shooting and that it appeared the students' lives might be at risk.
Kaulin Krebs, a junior at UC Berkeley, said he was arriving at a computer lab on the third floor of the business school around 2:15 p.m. when he heard several gunshots.
SF Gate said the man was alive when he was taken away by an ambulance. He was not clear if he was a student. NBC Bay Area's Cheryl Hurd said he was 33 years old.
An emergency alert was issued to all students on campus to avoid the east side of campus, where the business school is located.
A person at the Chancellor’s Office said the school was not on lockdown. Classes at Haas were canceled for the rest of Tuesday.