A lockdown at a Denver high school has been lifted after police say no weapon was found on campus Wednesday morning.

According to a Denver Public Schools spokesperson, a student called Safe2tell around 9 a.m. to report another student at East High School possibly had a weapon in his or her backpack.

Safe2tell is a way for students to anonymously report concerns or threats in schools.

Classrooms were put on a modified lockdown, which means classes were locked and students could not move around in the building.

Denver police responded to the school, but did not find a weapon. The lockdown was lifted and students were released to lunch just after 10:30 a.m.

According to our team on the scene, there is still a police presence at East High School.