SAN DIEGO — One person was killed and another wounded in a shooting outside of the downtown Central Library Tuesday afternoon, according to San Diego police.

Officers were dispatched to the San Diego Central Library, located in the 300 block of Park Avenue, around 12:15 p.m. after receiving reports of gunshots at the building.

According to Lt. Jud Campbell with the SDPD Homicide Unit, Central Division officers found the two victims with multiple gunshot wounds in the plaza area in front of the library and began providing aid.

One of the victims, identified as a 20-year-old man, was pronounced dead on the scene, Campbell said. The other victim, a 24-year-old man, was transported to a nearby hospital with non-life-threatening injuries.

The suspect, described as a man of an unknown age and height wearing dark clothing, has not yet been identified, according to SDPD.

Surveillance video obtained by FOX 5 shows a man running from the library west towards Petco Park, then turning north on 10th Street. He can be seen with a ski mask on his head and is carrying what appears to be a handgun in his right hand.

It is not known at this time whether the victims knew each other or the suspect.

The firearm used in the shooting has not been recovered, Campbell said.

According to SDPD, the events that led to the shooting remain unknown. Preliminary investigation findings, however, indicate that the suspect had some kind of interaction at the front of the library prior to opening fire in the area, striking the two victims.

Streets surrounding the library are expected to remain closed for at least three to four more hours while SDPD finishes their initial investigation, Campbell said. Police are asking the public to avoid the area.

According to Public Library officials, the Central branch will be closed for the remainder of the day and all scheduled events for today have been cancelled.

Multiple city agencies are currently working to find the shooter, according to SDPD, including the Metropolitan Transit System.

Anyone with information regarding this incident is encouraged to call the Homicide Unit at (619) 531-2293 or Crime Stoppers at (888) 580-8477.