The pre-dawn raid coincided with a video circulated on social media showing more than a dozen men in military uniform announcing an uprising to restore constitutional order following the creation of a pro-government legislative superbody on Friday, condemned internationally as a power grab by President Nicolas Maduro.

The assault highlighted the growing volatility of the OPEC member state after four months of sustained anti-government protests in which some 120 people have been killed. The opposition has denounced Maduro for dragging Venezuela toward dictatorship and has appealed to the military for help. (http://tmsnrt.rs/2ujuylf)

In his weekly televised show, the unpopular socialist leader condemned the attackers as "mercenaries". He said around 20 armed men had entered the Fort of Paramacay near Valencia, about two hours west of capital Caracas, before dawn, surprising guards and making straight for the weapons cache.