BEIJING, June 21 (Xinhua) -- Chinese President Hu Jintao and Premier Wen Jiabao on Monday made directives urging rescuers to "exhaust all means possible" to save miners trapped in an exploded colliery in central Henan Province.

A total of 72 miners were trapped after explosives went off at the powder magazine of the Xingdong No.2 Mine in Weidong District of Pingdingshan City at about 1:40 a.m. At least 46 people were reported dead.