<p>Four gold miners trapped underground after a tremor caused a rockfall in northeast South Africa have been found dead, their union said Sunday.</p>.<p>A fifth miner was rescued with serious injuries on Friday after the accident at the Tau Lekoa Mine in the town of Orkney, the National Union of Mineworkers (NUM) said.</p>.<p>"The four mineworkers were found dead," a union statement said after the rescue team lost contact with the four men deep underground early Saturday.</p>.<p>"The last person we talked to said: 'We are suffocating please, bring us some oxygen'," said NUM president Joseph Montisetse.</p>.<p>Deadly accidents involving miners are common in South Africa, which has the deepest mines in the world.</p>.<p>Last year 81 people died in the country's mines, according to the department of mineral resources.</p>
<p>Four gold miners trapped underground after a tremor caused a rockfall in northeast South Africa have been found dead, their union said Sunday.</p>.<p>A fifth miner was rescued with serious injuries on Friday after the accident at the Tau Lekoa Mine in the town of Orkney, the National Union of Mineworkers (NUM) said.</p>.<p>"The four mineworkers were found dead," a union statement said after the rescue team lost contact with the four men deep underground early Saturday.</p>.<p>"The last person we talked to said: 'We are suffocating please, bring us some oxygen'," said NUM president Joseph Montisetse.</p>.<p>Deadly accidents involving miners are common in South Africa, which has the deepest mines in the world.</p>.<p>Last year 81 people died in the country's mines, according to the department of mineral resources.</p>