Reuters: Three miners died after a tremor on Monday (July 1) at a Polish coal mine owned by mining group PGG, the company said, in the deadliest incident in the country’s mining industry this year.

The quake with a magnitude of 2.66 was felt in the afternoon in the Staszic coal mine in the town of Katowice, the heart of Poland’s coal region.

Nine miners were present in the area when the incident occurred, PGG spokesman Tomasz Glogowski said. Six others were taken to hospital after the incident, he said without giving further details.

Poland still generates most of its electricity from burning coal, but coal production has fallen in the past years due to lower investment and efforts to cost cuts.

Last year 21 miners died in mining industry accidents in Poland, official statistics show.

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