The crash was near Llandrindod Wells
Fire crews were called to a road accident between a car and a post van near Llandrindod Wells on Thursday.
Two appliances attended after the crash between Llanddewi and Dolau at about midday, and helped after a person was trapped in a vehicle.
One person is understood to have been injured in the crash.
It came on a busy day for the town's station, on which crews also had to extinguish two deliberately-set fires in the town.
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