The U.S. Environmental Protection Agency is investigating a strong chemical smell inside a Seaside home.

Seaside fire personnel responded to a report of the smell inside the residence on the 900 block of Avenue K about 8:30 p.m. Saturday. A hazardous materials team from the Astoria Fire Department joined the investigation Monday and used general ventilation techniques.

Officials then requested the help of EPA officials from Seattle and Portland, who began air monitoring and sampling Wednesday. Investigators believe the issue is limited to the interior of the home, where the residents have been evacuated, according to a press release.