COLUMBIA, S.C. (AP) — Workers at a site in South Carolina that once made key parts for nuclear bombs in the U.S. have found a radioactive wasp nest but officials said there is no danger to anyone.

Employees who routinely check radiation levels at the Savannah River Site near Aiken found a wasp nest on July 3 on a post near tanks where liquid nuclear waste is stored, according to a report from the U.S. Department of Energy.

The nest had a radiation level 10 times what is allowed by federal regulations, officials said.

The workers sprayed the nest with insect killer, removed it and disposed of it as radioactive waste. No wasps were found, officials said.