At least 20 people have died in a fire at a South Korean lithium battery factory near Seoul, public broadcaster KBS reported on Monday, citing rescue workers. Their bodies were retrieved from the multi-storey building in the city of Hwaseong, south of Seoul. It is feared that the number of victims could rise further. The number of missing was initially put at 23, with most of them said to be foreign workers. Several people were also injured, according to South Korean media. South Korean television showed flames and thick clouds of smoke billowing out of the building after a fire broke out in t…