Venezuelan opposition leader Maria Corina Machado said she is now safe after her aides said she was “intercepted” at a protest in Caracas on the eve of President Nicolas Maduro’s inauguration.

Machado, a former lawmaker who has spearheaded the opposition to President Nicolas Maduro in recent years, was detained by security agents who shot at motorcycles she was using to leave a protest in Caracas, the capital, according to posts on social media from her party. She was freed about an hour later, according to the party.

Maria Corina Machado, a 57-year-old engineer with rock-star appeal, became the fearless figurehead of Venezuela's opposition after being barred from challenging strongman Nicolas Maduro in elections last July.