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READING, Pa. - Students at Southern Middle School in Reading were sent home early Wednesday afternoon.

The 1:15 p.m. dismissal was brought about by the break of two of the school's heat pumps, according to an alert sent out by the Reading School District.

The problem has also forced the postponement of the school's Family Fun Night, which was set to be held Wednesday evening.

The district said its facilities department expects to complete repairs to the heat pumps in time for school to open as scheduled Thursday morning.