Government has shown that the Pike River Coal Mine "can not" enter safe enough for the teams and to save 29 trapped miners.
Asked if it would ever be safe for rescue workers to the mine where the miners are trapped since Friday in order, Superintendent Gary Knowles has given added stuff.co.nz reports "it could never reach that point."
He also said: "Although I can understand [the families'] frustration, we all to go underground, of course, over time, reduce us hope .."
The statement came as Supt Knowles and hot gas exploded from the mine after a while broke this morning.
Energy Minister Gerry Brownlee confirmed 150mm bore has been completed, with reports half robot made good progress with me. He said the hole had "hot gas rushing a lot of hot air and well", reports stuff.co.nz.
Authorities later said the gas with high carbon dioxide and methane was, and little oxygen.
Helpers are short for a camera in the hope and listening device in the hole below.
Pike River CEO Peter Whittall said there was a "great honor" that due to the rush of gases that came out of the hole and the length of time since the explosion, the outlook was not good for the 29 men of the earth.
But he added: "I hope that the guys are waiting there I hope to see you again .."
A second robot was sent into the mine this morning and passed the 1 km mark.
The first robot in the emergency service was resumed in the night and reached the 1 km mark before the battery ran low. It was a miner headlamp is one of Russell Smith, one of two men who escaped after the mine explosion Friday.
Mr Whittall said the light was still working, which means that if the surviving miners frugal with their lights, they can still mean.
A third robot is flown to Australia.
Restricted Area
The developments follow speculation today that four men live in a remote area of the tunnel complex.
Authorities yesterday described the chances of the 29 miners missing since huge gas explosion Friday as "somber" and New Zealand Prime Minister warned the nation to prepare for the worst.
But the Australian has learned that miners identified on the site a section where people could have survived.
The coal-washing station as a "pool" is known, down, on the one hand, and a corner of the central area where the explosion occurred understood.
According to Dave Gold Mine Staiger, who lives in a village near the mining Pike River Site and is in contact with his staff, believe the rescue crews that the greatest strength of the explosion and fire methane, the mine was gone, and "pool" would have protected, at least in part, are.
Mr. Staiger showed the Australian a card signed by one of the miners in Pike River, which the mine layout and point to the coal preparation section.
In a press conference yesterday, said Pike River chief executive Peter Whittall, as an area where a small number of miners had been working.
Mr Whittall describes how the two miners were shot after the explosion had expired, but from the mine, both work away from the main area of the mine, were protected by distance or at an angle.
"Survival in an explosion or otherwise dependent on the base where you are," said Mr Whittall.
CCTV
Dramatic pictures show the moment of the explosion blasted their way out of the main tunnel was revealed for the first time yesterday.
Pike River managers and the police played a video from a surveillance camera at the entrance of the mine taken.
It shows a patch on the side of the entrance to the tunnel in a gentle curve starts with the air flow, then wipe out hard as a wild river of wind and debris flying. The explosion takes almost a minute, such as dust, chunks, and finally a piece of light sheet overthrow my almost horizontal.
The company and the police the video at the families and friends five days after the explosion of rage, it was still too dangerous to send in rescue teams counter.