JOHANNESBURG -- Scores were killed overnight when fire tore through a derelict Johannesburg apartment block occupied by homeless people, officials and local media said on Thursday, as emergency evacuations from the blackened building continued. The fire killed at least 73 people and injured 43, the municipal government said, in one of South Africa's worst such tragedies in living memory. The blaze, whose cause was under investigation, started at around 1.30 a.m. local time (2330 GMT), Johannesburg Emergency Management spokesperson Robert Mulaudzi said. At 10 a.m., the five-story building was still smoldering, a large part of it blackened by soot...Keep on reading: Johannesburg fire: 73 killed in apartment block reported occupied by homeless