A student was stabbed Friday afternoon outside West Adams Preparatory High School in Pico-Union, police said. Around 4 p.m., as class ended for the day and students streamed out of the school in the 1500 block of West Washington Boulevard, officers from the Los Angeles School Police Department spotted a fight break out among a large group of students, Sgt. Rudy Perez said. In breaking up the fight, they saw that a male student had been stabbed once in the back, Perez said. The student, who was either 17 or 18 years old, was taken to a hospital, where he was stable Friday evening, Perez said. Police have identified a possible suspect, a fellow student at West Adams Preparatory High, but he has not been taken into custody, according to Perez.