BLAIR, Neb. (AP) — A bomb squad has determined that a package found in a vehicle at the Fort Calhoun nuclear power plant poses no danger.

The Omaha Public Power District says in a release that security workers noticed the package around 8:44 a.m. Friday. The vehicle was just outside what the district called the protected area of the plant. About 30 workers at a nearby warehouse were evacuated as a precaution, but the plant continued to operate.

The district says the Washington County Sheriff’s Office was notified, and a bomb squad from Omaha eventually was called in. The squad determined that the package didn’t contain any explosives. It’s not clear yet what the package did contain, if anything.