By 3 News staff
The Maori Council says the asset sales should be halted while the wider issue of who owns the water is sorted out.
About 200 hundred Maori from across the country are attending a Waitangi Tribunal hearing over Maori water rights.
The Maori Council says Maori have rights to the water being used in the four state owned power companies which the Government wants to partially sell.
Legislation allowing the partial privatisation of the power companies was passed in Parliament last month.
The hearing is likely to go for just over a week and could result in the Waitangi Tribunal recommending the asset sales be halted.
However any recommendations will not be binding and whether the Government will listen to them is uncertain.
The Crown has opposed the urgent hearing and says any claims by Maori to water and geothermal resources would not be compromised by the partial privatisation of the power companies.
Prime Minister John Key has said his position is that nobody owns the water.
3 News