A Campus shooting at UCLA Wednesday morning left two men dead in an apparent murder-suicide that sent thousands of students running for safety and barricading themselves in classrooms, authorities said.

LAPD Chief Charlie Beck confirmed that the shooter was one of the two men killed in a small office in a building in the campus’ engineering complex, reports the Los Angeles Times.

"The campus is now safe," Beck told reporters in a news conference shortly after noon. At 12:05 p.m. UCLA officials lifted the campus lockdown and canceled classes for the remainder of the day.

The shooting, which happened just after 10 a.m. prompted massive response from local and federal law enforcement.

Authorities did not identify the victims and a motive was not immediately clear.