Two people were taken to the Princess Elizabeth Hospital after a house fire in St Sampsons.
It broke out at a property in Ronde Cheminee in the early hours of this morning.
St John Ambulance says two people were assessed and taken to the Emergency Department to be treated for potential smoke inhalation.
Police and the Guernsey Fire and Rescue Service were called out at 00:43, taking several hours to bring the blaze under control.

First Michelin star awarded in Guernsey in more than a decade
Guernsey Fire & Rescue Service needs "investment and modernisation"
Engine room fire onboard DFDS freight ship
Gannets return to Alderney
Burglaries at Guernsey pharmacy and garage
Kids fly free between Guernsey and Jersey this half-term
Guernsey Water to take over cesspit collections from States Works
Guernsey Literary Festival to host most events ever