(FULTON, Mo., AP) — A nuclear power plant near Fulton has shut down after a small fire in the turbine building.

Ameren Missouri said in a news release that crews quickly distinguished the Friday night fire at the Callaway Energy Center. The utility stressed that no one was injured and that the public wasn’t threatened.

But the release said the center is “out of service in accordance with safety protocols and procedures.”

Ameren says an assessment is underway to determine when the facility can return to service.

The Callaway Energy Center typically generates about 20 percent of the electricity supplied to Ameren Missouri’s 1.2 million customers. The utility says that while it’s out of service, the energy it produces will be replaced by other Ameren Missouri facilities.