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SWANSEA, Ill. – High Mount School in Swansea, Illinois was evacuated at about 10:15 a.m. Thursday after people in the school office smelled natural gas.

Swansea Fire and Ameren Illinois’ gas division have been called to the school. They did not find a gas leak.

Ameren is doing a high-pressure test to be certain. The furnace has been turned off.

Students were dismissed early and will not return to school Thursday.

There have not been any reports of injuries or damage.