Venezuelan opposition leader Juan Guaido has arrived back in Venezuela to renew his campaign to topple the government of President Nicolas Maduro.
Guaido landed at the country's main airport, about 40 kilometres from Caracas. He said in a tweet he had successfully passed through immigration checks.

Juan Guaido waves a Venezuelan flag Source: AAP
Several European ambassadors who support his campaign for a change of leadership in Venezuela were at the scene as he arrived on Monday.
Dozens of countries have recognised Guaido as Venezuela's legitimate leader, arguing that last year's re-election of Maduro was invalid.
Guaido has called for nationwide demonstrations coinciding with his arrival. He'd ignored an official ban on travelling to go abroad.
Several hundred of his supporters gathered in a Caracas plaza, heeding a call from the self-declared interim president to turn out for his expected return to Venezuela.
More demonstrators on Monday were walking towards the plaza in the Las Mercedes district of the Venezuelan capital. Some carried national flags.
Guaido said the goal of his return was to intensify pressure on Maduro to resign so that a transitional government can take over and prepare Venezuela for free and fair elections.
Maduro says he is the target of a US-backed plot to overthrow him.