Two miners were injured and eight others trapped on Thursday inside a Bosnian coal mine after an earthquake triggered a gas explosion and caved in two tunnels.
The 3.5-magnitude quake, which hit at 4:30 pm (1430 GMT), had its epicentre 53 kilometres (33 miles) northwest of Sarajevo, national BHRT television reported.
Esad Civic, manager at the Raspotocje mine in Zenica, said two underground galleries there had collapsed.
Rescue crews were trying to free eight co-workers who were trapped inside, sheltering in an undamaged gallery with remaining oxygen, while two injured miners had been hospitalised for treatmen, according to the television report.
Some 60 miners had been in the mine at the time of the earthquake, union leader Mehmed Oruc said.
No other damages were reported in the Balkan country after the quake.