Venezuela opposition leader Maria Corina Machado was detained at a march in Caracas on Thursday in her first public appearance in months and her ally, former presidential candidate Edmundo Gonzalez, demanded she be freed immediately.

STORY: Venezuela opposition leader Maria Corina Machado was briefly detained then released, after she came out of hiding for the first time in months.That's according to her Vente Venezuela movement on social media.

Venezuela opposition leader Maria Corina Machado was freed on Thursday after a brief detention, her Vente Venezuela movement said on social media. Machado was detained after an anti-government march in Caracas,