Rescuers to drill hole to assist in New Zealand mine rescue

Rescuers will start to drill a hole to assist in a rescue attempt at the New Zealand coal mine where 29 men are missing after a blast, officials say.

Police say they "remain positive" that the men will be found alive, but the fear of a second explosion is preventing rescuers from entering.

Pike River Mine Chief Executive, Peter Whittall, said a drill rig will make a hole that will be initially used for taking gas samples.