Four appliances and crews attended:
- One from Winslow
- One from Newport Pagnell
- One from West Ashland
- One from Bedfordshire
One officer also attended.
A small fire, in the bathroom of a single-storey residential building, was out before they arrived.
Two people were treated for the effects of breathing in smoke.
Firefighters used a positive pressure ventilation fan to clear the smoke.
Thames Valley Police were also in attendance.