Machado was released after a brief detention while leaving a protest in Caracas Thursday on the eve of President Nicolas Maduro’s inauguration.

The Nicolas Maduro regime arrested Venezuelan opposition leader María Corina Machado on Thursday after opening fire against the driver of the motorcycle in which she was riding, people close to her team said.

Machado’s appearance at the rally was her first public appearance in months, since a government crackdown on Venezeulan opposition figures and their supporters last year.