Students are grieving and shaken after UCLA was put on lockdown Wednesday morning.
Reports flooded 9-1-1 saying a gunman was seen on campus and that students and staff heard gunshots. Los Angeles Police Chief Charlie Beck confirmed two men were dead in an engineering building.
This happened around 10 a.m. and police ruled the incident as an apparent murder-suicide.
A note was found in an office near the men, but there is no description yet of what it is and what the relationship was between the man and the professor.
The professor was identified as William Klug, who worked in the Mechanical and Aerospace Engineering Department.
Students told 23ABC they were scared, and locked themselves in classrooms, libraries and bathrooms to stay safe. Some doors on campus didn't lock, so students quickly pushed desks and used belts to tie the door so it could not open.
A UCLA spokesman said officers were still clearing students and staff in the engineering building around 4:45 p.m.. The spokesman said school officials are looking into campus safety procedures, to beef up security to protect their students.
Los Angeles Mayor Eric Garcetti tweeted a statement saying he was heartbroken to see SWAT walking the corridors students usually occupy and angered that one person with a weapon can incite so much fear.