UPDATE: 12:20 p.m.: The Charlottesville Police Department reports the call about a possible active shooter at Walker Upper Elementary School was a hoax.

Around 10:45 a.m., police received a report of an active shooter at the school, which was placed on lockdown while officers responded.

A search of the building found no unusual activity or threat.

Police gave the all-clear for the school to return to its normal activities around 11:05 a.m.

Officers remained at the school for a time to make sure the area is completely secure.

CPD says calling in a false report to the police is illegal, and this call is being investigated as a crime.

Counselors and other mental health providers are available at the schools, and there is also the Care Solace service offering assistance with making appointments with mental health providers.

UPDATE: The Charlottesville Police Department has cleared Walker Upper Elementary School and found no threat.

Officers responded to the school after receiving a 911 call about an active shooter, but no weapons or other threats have been found.

Students are being briefly held indoors but will be resuming their regular schedule shortly.

CHARLOTTESVILLE, Va. (CBS19 NEWS) -- Police are at Walker Upper Elementary School, but there does not appear to be a threat at this time.

Officers responded to a report of a potential threat on Tuesday morning.

The school is on lockdown while the investigation is underway.

However, school officials report all students and staff members are safe.