Tbilisi, Georgia - Officials say a methane explosion at a coal mine has killed three and wounded seven people in western Georgia.
Interior Ministry spokesman Zurab Gvenetadze said an explosion occurred at the mine about 300km west of the capital Tbilisi late Friday.
State-owned Georgian television quoted hospital officials saying that all the wounded are in a critical condition.
The Interior Ministry said the cause of the accident has was not known.
This is a second explosion at the same mine this year. In March, a sudden build-up of methane gas caused the blast that killed four miners. - Sapa-AP