Xu Guangguo, vice governor of the province said rescuers are still searching for the three missing miners, Xinhua reported.
The miners were trapped when their mine was flooded trapping them in different parts of the mine.
Rescuers reported earlier that they heard "knocking sounds" from the Hengtai Coal Mine, located in the city of Qitaihe.
The flooding occurred last Tuesday, when 45 miners were working in a pit. Nineteen miners managed to escape.
The provincial government ordered the mine to stop production in 2007. But the owner restarted production without permission on August 16, according to the local work safety bureau.
The accident occurred after workers mistakenly drilled into a neighbouring mine.
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