A massive fire in Portland city, Oregon state, in the United States of America on Thursday caused a building that was under construction to collapse, officials said, according to UPI. The five-alarm fire was reported to the Portland Fire Bureau just after 4 a.m., KATU, Portland, reported. The cause of the fire was not reported. By the time firefighters arrived, the building had collapsed and the fire had spread to nearby houses. No injuries were reported.