A man has been charged with manslaughter following an investigation into the deaths of four men at Gleision Colliery in September 2011.
Malcolm Fyfield, 57, has been charged with four counts of gross negligence manslaughter and will appear at Neath Magistrates Court on February 1st.
The four men – Philip Hill, 44, Charles Breslin, 62, David Powell, 50 and Garry Jenkins, 39 - died after becoming trapped in the mine on 15th September 2011.
More top news
Welcome to the Newsweek Quiz - where we'll be testing your knowledge from the last seven days of news here in Wales.
Ospreys lock Lloyd Peers has joked that a change of name after marrying his wife, could mean better fortunes on the pitch.
Much of Wales is bathed in warm sunshine at the moment, but be warned! It is about to come to an abrupt end overnight!