An underground tremor occurred early on Monday morning in Polish mining group PGG's Marcel coal mine in Radlin, southern Poland, the state-owned PAP news agency reported.

Hospital authorities in southern Poland say a second miner has died from injuries suffered in a fire at a coal mine this week.

Doctors said Wednesday that 16 coal miners have suffered burns and injuries from a methane gas fire at a coal mine in southern Poland. Lukasz Pach, head of the regional ambulance service in Katowice,

Polish paramedics treated 16 injured coal miners on Wednesday after methane ignited in a mine in southern Poland, the ambulance service said. Operator JSW said the gas had ignited in the Knurow-Szczyglowice mine at a depth of more than 850 metres.

Hospital authorities in southern Poland say a coal miner who suffered burns from a colliery methane gas fire has died.