Four dead, 20 hurt in Polish coal mine explosion

Suspected methane blasts have killed at least five people and injured 20 others in a coal mine in southern Poland, Report informs, citing foreign media.

Polish deputy prime minister, Jacek Sasin, tweeted that rescuers were still looking for seven other people.

Polish Prime Minister, Mateusz Morawiecki, expressed his condolences and said he would travel to the area.