Two emergency workers have been trapped in an underground bunker after an eruption from Merapi volcano on Wednesday. The bunkers are usually equipped with water and food and emergency supplies of oxygen. There workers were initially speaking to rescuers via mobile phone, but contact has been lost possibly due to lack of battery power. Soldiers in heat resistant suits dug through debris today trying to free the workers, but had to flee further eruptions from the volcano. Heat melted the troops' shovels and the tires on a mechanical digger brought into plow through more than two meters of volcanic debris covering the bunker.
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