Venezuela detains dozens of anti-government protesters
15 May 2014 Last updated at 04:57 BST
Police in Venezuela have detained at least 80 demonstrators who were demanding the release of those arrested in recent anti-government protests.
Hundreds of people, mostly students, had marched peacefully through the streets of the capital Caracas.
But security forces later clashed with a group of demonstrators who threw stones and home-made explosives, and tried to erect barricades.
Mariko Oi reports.