Manchester, CT – Three stores in Manchester were evacuated due to possibly elevated levels of carbon monoxide Tuesday afternoon.

Firefighters responded to the Big Lots at 1470 Pleasant Valley Road shortly before 3:30 p.m. The store was evacuated as a precaution.An iParty store and a Dollar Tree store nearby were also evacuated as a precaution.

Firefighters determined the carbon monoxide was coming from the heating system at Big Lots.

Dollar Tree and iParty were allowed to reopen around 5 p.m.It was not clear when Big Lots would reopen.