An explosion at an armaments factory in Poland killed one and injured several, local media reported on Monday. The explosion started a fire and killed a 59-year-old worker at the Mesko weapon factory in the Polish city of Skarżysko-Kamienna. Another employee was hospitalised after inhaling smoke, though his condition is not life-threatening, local authorities said. “We had an explosion at the rocket fuel centre, which was put into operation a few years ago,” said the plant’s chairwoman Elżbieta Śreniawska. The cause of the incident is currently under investigation. The factory — owned by the s…