Six apartment buildings were evacuated Friday after Westminster police investigated a report of pipe bomb in an apartment building located at 8290 Federal Blvd. in Westminster, but authorities determined suspected items were not a bomb, and residents were allowed back in to their homes.

Tthe Adams County Sheriff’s Department was notified at about 8 a.m.

At that time nearby schools — Metz Elementary and Ranum Middle School — were placed on lockout due to their proximity to the apartment building.

With the assistance to the Adams County Sheriff’s bomb squad, a robot was used to determine if the suspected items were in fact a pipe bomb.

“The bomb squad determined the items in the apartment were not a bomb,” said Westminster investigator Trevor Materasso. “The robot was used to check a vehicle and removed a suspicious bag from the van. A water cannon on the robot was used to make sure no explosive device was inside the bag.”

Materasso said certain items found may not be illegal, but police are concerned due to the individual’s criminal history involving explosives. The person has only been detained.

An investigation is ongoing and police will release a name and photograph of the individual if charges are filed.