SAN FRANCISCO (CBS SF) — A shooting in front of the campus for two San Francisco schools in the Excelsior District Tuesday afternoon left four teen students injured with one in critical condition, according to police.

Police said they responded to a report of shots fired at Brazil and La Grande avenues at around 3:17 p.m. and initially confirmed one victim in the shooting.

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The shooting occurred in front of 325 La Grande Avenue, which is the campus for both the June Jordan School for Equity and City Arts and Tech High School.

A San Francisco Unified School District spokesperson said shots were fired outside the school right around dismissal time.

SFPD later confirmed that three people were shot in the school parking lot. The three victims then ran inside the school.

One victim, a female, is in critical condition with life-threatening injuries. Two male victims suffered non life-threatening injuries. All victims are juveniles who attended June Jordan.

SFPD believes at least one of the victims was targeted and that the others injured were bystanders.

Shortly before 6 p.m., police reported that an additional student had arrived at the Bayview police station with injuries from the shooting, bringing the total number hurt to four. Authorities said that student was transported to SF General Hospital. Police did not know the condition of that student.

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A mother who was at the school to pick up her child from school said that she heard six shots.

SFPD at first thought it was an active shooter scene because they found the victims inside the school. They did a room-by-room search and determined there was no active shooter.

Police searched the area for a suspect and told residents and businesses in the area to stay inside.

Four male suspects were last seen running west on Brazil away from the June Jordan campus. The suspects are currently still at large. They were described as wearing dark pants and hooded sweatshirts.

At about 4 p.m., SFPD declared the school safe and lifted the lockout, according to the school district.

An SFUSD spokesperson said school will be open Wednesday with grief counselors on hand.

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