Firefighters in northern China rescued a worker buried in an eight-metre-deep concrete storage tank after he accidentally fell in.<br /><br />The video, filmed in the city of Yan'an in Shaanxi Province on December 28, shows firefighters using their hands to dig out the man. <br /><br />According to reports, the firemen lowered down into the deep tank via a rescue ladder and first used shovels and then their hands to remove the concrete.<br /><br />After an hour, the worker was rescued successfully and taken to hospital.