Lost power @ 3:18 a.m. and fan. All employees were evacuated out of mine. Ventilation was restored @ 4:00 a.m. Employees did not go back in the mine due to rising water in the pit. At 5:08 a.m. the water breached the return portal and went to xc-7 MW return and over to xc-6 MW travelway. Reported at 5:19 a.m. There was no k order issued.