Police had guns drawn outside a London high school Friday morning, and residents in the neighbourhood around Hamilton and Trafalgar roads were put on lockdown while officers investigated reports of a firearm that turned out to be a cap gun.

B. Davison Secondary school officials called police after receiving a call at 9:17 a.m. from someone who said a student was going to bring a gun to school, poilce said.

Before 10, officers had located a cap gun that matched the description of the gun.

Along with the lockdown, police shut down roads and told neighbours to stay inside. After finding the cap gun, they kept the lockdown in effect, and remained around the school with guns drawn until they arrested a student inside B. Davidson – formerly Thames high school.

During the probe, nearby Pearson, Trafalgar, Ealing and Aberdeen public schools were also in lockdown mode.

The lockdown was lifted shortly after 10:30 a.m. when a suspect was located.

“Students and staff were safe at all times,” a Thames Valley District school board representative said?