An explosion caused by accumulated gas in six adjoining coal mines in central Colombia has killed at least 11 workers and trapped 10 below ground, authorities said on Wednesday.
The explosion took place late on Tuesday in a rural area of Sutatausa, about 75 km (46 miles) north of Bogota.
"People are trapped between 700 and 900 meters," Cundinamarca provincial governor Nicola Garcia told journalists, adding more than 100 rescue workers had joined the search.
