NZ mine rescue hope 'diminishing' say officials

The officials heading New Zealand's mine rescue operation have released CCTV of the explosion but warned that the likelihood of rescuing the miners "is diminishing".

Police Commander Gary Knowles warned in a new conference that "we have to be frank about the situation", while Peter Whittall from Pike River Coal showed the CCTV footage of the explosion reaching the mine entrace, for the first time.