By RNZ
A representative of 22 of the Pike River families says the group plans to seek a court injunction to stop the mine being permanently sealed.
A group of more than two dozen of the victims' families and their supporters yesterday protested against the Government's intention to close the mine where 29 men died in a series of explosions in 2010.
Bernie Monk, whose son was killed in the disaster, said the families want the work halted, and for the mine to remain unsealed until the police have finished their investigation into the disaster.
"We are asking them not to seal the mine up until after the police have finished their investigation. I don't think that's a big ask.