The Berlin fire brigade has warned the public of hazardous fumes following a fire at a metal technology company located in the south-west of the city. A fire broke out in a factory on Friday. A technical room on the first floor of a factory building was “fully engulfed in flames,” according to a fire brigade spokesman. Chemicals were stored in the metal technology company. As a precautionary measure, the fire brigade had issued a hazard warning. Residents were asked to keep windows and doors closed as the volume of smoke was increasing. The results of air pollution tests were not yet available…