where two opposition leaders have been taken to a military prison by the security services, a move that s been widely condemned. the un secretary general has expressed concern that the escalation of political tensions will make it harder to find a peaceful solution to the current political crisis. venezuela has some of the world s largest proven oil deposits but 82% of venezuelans live in poverty. former president hugo chavez, who died in 2013, styled himself a champion of the poor during his 1a years in office, pouring billions of dollars of venezuela s oil wealth into social programmes. the left wing government of his successor, nicolas maduro, has struggled to cope with with inflation running at more than 50% a year, plummeting oil prices and accusations of corruption. our correspondent katy watson has sent this report from caracas. antonio ledezma screams for help as he is taken away in his pyjamas by the venezuelan intelligence service. there s panic, while someone else