The Askul Corp. warehouse blaze that took nearly two weeks to put out in February was prolonged because over half of its fire shutters failed to close, a government report said Wednesday.

Of the about 130 fire shutters on the second and third floors, which were heavily damaged, close to 60 failed to operate because the fire caused a short circuit in the electrical wiring, the report said.

In addition, obstructions such as belt conveyers and other equipment prevented about 20 shutters from closing all the way, according to the report, which was released at a meeting of the Fire and Disaster Management Agency and the Land, Infrastructure, Transport and Tourism Ministry.