FRANKFURT, Germany—Police warned people in Hamburg, Germany, to close their windows early Sunday after a large fire that engulfed several warehouses sent black, chemical-laden smoke drifting over the city.
German news agency dpa said the fire broke out around 4:30 a.m. in the Rothenburgsort district, located in the eastern part of Germany’s second-largest city. The smoke drifted from there toward the city center, halting long-distance trains between Hamburg and Berlin and other cities.
A public safety alert conveyed through a mobile phone app advised people in Hamburg to close windows, turn off ventilation and air conditioning, and to avoid the area. No injuries were reported….