UPDATED (8:54 p.m.)—The investigation continues Monday night into chemicals found in the basement of a Parkville home that police initially suspected were part of a bomb or methamphetamine manufacturing operation.

Det. Shawn Vinson, a police spokesman, said police now believe neither drugs nor explosives were being manufactured in the home located in the 8300 Block of Ridgely Oak Road near Loch Raven Village.

Vinson said investigators believe "the chemicals are of little significance."

Baltimore County police and fire departments were called to the home by the owner after he noticed a strong chemical smell inside. The owner does not live in the home and Vinson said the location of current occupant, who is related to the owner, is not known.

The county's bomb squad was called after police and fire crews confirmed the smell of a chemical in the basement. Neighbors on either side of the home were evacuated as a precaution.

Those residents were eventually allowed to return to their homes. An unidentified chemical was removed from the basement. Police continue to investigate to determine exactly what the chemical is. No one was injured as a result of the incident, said Vinson.