**************GRAPHIC MATERIAL TO FOLLOW**************<br/> <br />The bloody scene inside a Bolivia prison after a deadly riot.<br/> <br />At least 15 people were killed Friday and as many as 60 others injured after an early morning standoff between inmates in this Santa Cruz prison.<br/> <br />Local media say the fight resulted in an explosion and a fire that burned for two hours.<br/> <br />Anxious relatives waited outside for news about their loved ones, many of whom were still locked inside soon after the riot broke out.<br/> <br />SOUNDBITE: Unidentified family member of a prisoner, saying (Spanish):<br/> <br />"Those from the back pavilion attacked those in the front and they went in with guns and grenades and there was a gas bomb explosion too. They told us there were two killed."<br/> <br />Some of the prisoners lived behind these walls with their families including children.<br/> <br />At least one minor was among the dead.<br/> <br />Most of the fatalities were from the fire, although journalists on the scene reported h
