Fifty-four injured and 18 missing after explosion at Qatar LNG site, authorities say

June 21 (Reuters) - Fifty-four people have been injured while 18 are missing after an explosion at Qatar's core liquefied natural gas processing site of Ras Laffan on Sunday, authorities said.An incident during the start-up of operations at Ras Laffan Industrial City resulted in an explosion and fire at the Barzan local gas supply facility on Sunday evening, QatarEnergy said in a statement. Emergency response teams were deployed to contain the fire, which was now under control, it said.