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Survivors are still being brought to the surface by rescuers after an entrance to a gold mine caved in, leaving workers trapped.

Dozens of miners were trapped underground for several hours – three still remain missing – following the collapse of a gold mine in northeastern South Africa.

A spokesman for the Association of Mineworkers and Construction Union (AMCU) initially said around 115 of its members were “unaccounted for” after offices at Goldfields Lily Mine in Barberton, 224 miles east of Johannesburg, “tragically caved in” at 8.40am (local time) on Friday.

Mike McChesney, chief executive of the small gold producer Vantage Goldfields, said 87 workers had been brought to the surface, but three remained unaccounted for as rescuers continued to search for them.

There were no reports of any fatalities – and paramedics at the scene said those rescued had not suffered serious injuries.

Trapped miners were brought to the surface through ventilation shafts, the Barberton Times reported.