A fire at a plant belonging to Apple...supplier Foxconn Group in Shandong, eastern China, has been extinguished without casualties and there will be no impact on operations, said a spokesman for group's listed entity Hon Hai Precision Industry...Electrical cables on a building rooftop caught fire on Tuesday morning, the spokesman said, adding that any damage would be covered by insurance. He did not say what was produced at the plant, in the city of Yantai. Officials at the technology park in which the plant is situated were unavailable for comment...Foxconn Group has struggled under a host of problems, including rising costs, labour unrest and a string of worker suicides at its sprawling production facilities in China.