Venezuela's Guaido urges supporters

CARACAS, Venezuela (AP) — Opposition leader Juan Guaido urged supporters to stage huge demonstrations Monday coinciding with his planned return to Venezuela, in a challenge expected to escalate his power struggle with President Nicolas Maduro.

"See you tomorrow," Guaido said in a live video address on social media Sunday night. He delivered a defiant warning to Venezuelan authorities, saying any attempt to detain him "would be without doubt one of the last mistakes" that the government commits.

Guaido spoke to the camera in a room with his wife, Fabiana Rosales, beside him and a Venezuelan flag in the background. Guaido, the leader of the opposition-controlled National Assembly who has declared himself interim president, did not say where he was and he did not reveal any details about how he planned to return to Venezuela.