At least two people have been shot dead in Venezuela in protests against the government of President Nicolas Maduro. A teenager died in the capital and a woman was killed near the Colombian border. Tens of thousands of people have taken to the streets to demand new presidential elections and the release of jailed opposition politicians. President Maduro has accused the opposition of attacking the police and looting shops. He said more than 30 arrests had been made. Supporters of the government are holding a rival rally in capital. Despite having the world’s largest proven oil reserves, Venezuela has suffered from high inflation, rampant crime and a shortage of basic goods.