3 shot, 1 killed near Sacramento City College

A police officer stands guard as Sacramento City College is on lockdown while police search the area after a shooting, Thursday, Sept. 3, 2015, in Sacramento, Calif. The shooting occurred in a parking lot near the baseball field on the college campus. (Renée C. Byer/The Sacramento Bee via AP) MAGS OUT; LOCAL TELEVISION OUT (KCRA3, KXTV10, KOVR13, KUVS19, KMAZ31, KTXL40); MANDATORY CREDIT less A police officer stands guard as Sacramento City College is on lockdown while police search the area after a shooting, Thursday, Sept. 3, 2015, in Sacramento, Calif. The shooting occurred in a parking lot near ... more Photo: Renée C. Byer, Associated Press Photo: Renée C. Byer, Associated Press Image 1 of / 4 Caption Close 3 shot, 1 killed near Sacramento City College 1 / 4 Back to Gallery

SACRAMENTO, Calif. (KCRA) — At least three people were injured -- one of them fatally -- in a shooting on the campus of Sacramento City College which prompted a lockdown and search nearby for the shooter, police said Thursday.

Police said the campus has been cleared after officials conducted a classroom-by-classroom sweep for the gunman. Police with help from a helicopter were searching the campus and surrounding area for the suspect and had yet to find him some two hours later.

Sacramento police said the three victims are all men and at least one of them is a student. Additional information about the student's condition -- or if he was the person who died -- has not been released.

Watch report: 3 shot, 1 killed, gunman sought on Sacramento college campus

One victim was being treated at a hospital and one was taken to a hospital but required no treatment, police said. No further details on the injuries were released.

A stretch of Sutterville Road is still closed as a heavy police presence remains in the area in the search for the shooter. Officials said the shooter was shirtless and is wearing cargo shorts.

College student: We were told to get on floor, remain quiet

Not too far from a gathering of media and officials near the campus, some family members of one of the victims also congregated, expressing sadness and frustration that a video on social media reportedly showed one of the victims receiving CPR from a relative, who was also on campus at the time.

The shooting happened in the 3800 block of Freeport Boulevard after some sort of altercation, campus police said. Reports indicate that the shooting occurred near a school baseball field.

Los Rios police and the Sacramento County Sheriff's Department are also responding to the shooting.

Classes were in session at the college with a student body of about 25,000. The fall semester began Aug. 22. Classes have been canceled for the remainder of the day.