Around 15 people are reportedly trapped underground at an unlicensed gold mine in western Colombia, says a report.

A mine reportedly collapsed, apparently after flooding caused by the holes drilled to extract the mineral. Currently, 50 rescue workers and medics are on the scene. Some of the miners are trapped at a depth of about 17 metres, others at about 10 meters, says a report. The accident happened on an indigenous reservation in the municipality of Riosucio, adds a report.

Colombia is a major gold producer, with output of more than 55,000kg in 2013, according to government figures.