Two powerful earthquakes struck Venezuela in quick succession, triggering widespread concern over the scale of damage and casualties.

According to the report, the quakes occurred just 39 seconds apart and measured 7.2 and 7.5 on the Richter scale.

The incident has been described as a major disaster for the country, with the tremors said to have caused severe impact.

A US assessment cited in the report warned that the death toll could climb dramatically, with estimates ranging from 10,000 to 100,000.

Further details on the extent of destruction and official casualty figures were not provided in the source.