A west end high school is in lockdown as police search for a suspect, possibly armed with a weapon.Toronto police say they were called to Runnymede Collegiate Institute on Jane Street near Dundas Street West just before 3:30 p.m. Friday for reports someone was inside the school with a gun.Investigators say the school is currently in lockdown as they search for the suspect, described as Black male, five-feet-eight, last seen wearing a black winter puffer jacket. Police did not say if the individual they are searching for is a student at the school or not.This is a developing story