Venezuelan opposition leader arrested after anti-government protest

Opposition leader Maria Corina Machado addresses supporters (Matias Delacroix/AP)

Venezuela opposition leader Maria Corina Machado has been arrested after her convoy was intercepted by security forces as it departed an anti-government protest in Caracas, according to aides.

Ms Machado emerged from months of hiding earlier on Thursday and reappeared in public as part of a last-ditch attempt to block President Nicolas Maduro from clinging to power.