Four miners are killed in the Gleision Colliery mining accident in the Swansea Valley, Wales, UK.

Gleision Colliery mining accident

The Gleision Colliery mining accident was a mining accident which occurred on 15 September 2011 at the Gleision Colliery, a drift mine at Cilybebyll in Neath Port Talbot, in Wales. The accident occurred while seven miners were working with explosives on a narrow coal seam.…

September 15

Day of the year

September 15 is the 258th day of the year in the Gregorian calendar; 107 days remain until the end of the year.