Turkey’s prime minister has been inspecting rescue efforts at Zonguldak mine in the north of the country where 30 workers remain trapped after Monday’s explosion.
But Recep Tayyip Erdogan received an angry reception by desperate families demanding a quicker response.
It is now thought it could take another four days to reach the miners who are trapped behind a 20 metre-long rock fall.
Around 40 miners were working in two separate areas of the pit at a depth of about 540 metres when there was a suspected build up of gas which exploded.
Eight workers were initially reported injured. No one has communicated with those still trapped since the blast.