ANKARA - An explosion in a coal mine in northern Iran on Wednesday killed at least 21 workers and injured 69 others, state media reported. 'Twenty-one bodies of workers who were killed in the explosion have been taken out of the mine ... So far there have been 69 injured,' a regional official in Golestan province told the semi-official Tasnim news agency. The blast occurred at 12:45 p.m. local time in the Zemestanyurt coal mine in Golestan.