Three crews from Huntingdon, two crews from St Neots, a crew from Kimbolton and a crew from Stanground were called to Breach Road shortly before 9.30pm and arrived to find a fire in the first floor flat of a two storey building. A spokesman for Cambridgeshire Fire and Rescue Service said: The ground floor was a restaurant. Wearing breathing apparatus they extinguished the fire using hose reels and jets. They cleared the smoke using a positive pressure ventilation fan. The building was safely evacuated before the crews arrived. They were able to stop the fire spreading to the roof space, however the whole building suffered smoke and water damage. Firefighters left the scene at about 4am. The spokesman added: An investigation is underway to determine the cause of the fire.