A northwest Calgary high school was locked down on Tuesday afternoon due to a weapons complaint. Calgary police said at 12:35 p.m., it received reports someone was inside James Fowler High School with a weapon. The school, located in the 4000 block of Fourth Street N.W., was subsequently locked down. At the time of the incident, police said there was “no active threat” to the students within the school. In another update around 1:50 p.m., police said the lockdown had been lifted. “The suspect is believed to have fled the school property prior to police arrival, however the school was thoroughly checked as a precaution,” police said. Police are investigating the incident and reviewing evidence to determine if a weapon was involved.