An overnight fire Wednesday at a building at the Houlton International Airport has impacted several businesses and area residents. Houlton Fire Department Chief Milton Cone tells our sister station WAGM that a crew of 29 firefighters responded to a building at the Houlton International Airport around 9 PM Tuesday night. He says when they arrived, they discovered a building known as the former Houlton International Building was fully involved. The building is an old hangar that’s been converted into a tenant complex for several businesses. Chief Cone says at least four businesses were impacted including the Tiny Homes of Maine and several medical marijuana dispensaries. Cone says it was a complicated fire. He says they responded with six pieces of apparatus. He says crews returned to the station around 1 AM.