Six people were shaken but uninjured after escaping from an early morning duplex fire wearing only their pajamas and nightclothes. Firefighters responded to the scene, in the 14000 block of SE Allen Road in Bellevue. at about 4 a.m. Friday after receiving reports of smoke and flames billowing from the home. When crews arrived, flames were shooting six to 10 feet high from the roof and family members were evacuating from the duplex. More units were called in from Kirkland and Mercer Island to help extinguish the intense blaze. Fire officials at the scene said it appeared that the fire started on the outside deck and in the garage, then began spreading to the attic and roof.