The social media accounts of her political movement, Vente Venezuela, as well as her campaign, posted images and videos of Venezuelans crowding the streets of Caracas to welcome her return. The New York Times reported that Machado entered Venezuela from Colombia, citing two anonymized government officials.

Edmundo González Urrutia, another key opposition figure, also posted on social media Sunday that Machado is “on Venezuelan soil” and that he would soon be with her “so that our country truly advances toward freedom.”

Machado’s return adds some urgency to the country’s democratic transition—which the interim Venezuelan government under acting President Delcy Rodríguez, as well as its apparent overseer, the U.S., have both promised. Rodríguez, who was formerly Maduro’s deputy, and U.S. President Donald Trump have both said that elections will be held in the country, but a date has yet to be finalized.