The standoff increased tensions between the US and Russia, who both accuse each other of interference.
Choice of Workers’ Day for a major march is an appeal to the traditional base of Maduro and his predecessor Chavez.
The opposition leader says he has begun the 'final phase' of his campaign to oust the president.
US Secretary of State Pompeo urges Venezuelan leader to leave his post so the country can return to normalcy.
Tens of thousands take to the streets to back opposition leader Juan Guaido.
Two major blackouts have fuelled public anger with the government of President Nicolas Maduro.
President Nicolas Maduro seen as intent on staying put.
Nicolas Maduro, meanwhile, blames the outages on cyber attacks directed from abroad.
Rival Juan Guaido urges foreign powers to consider 'all options' in ousting Maduro.
Juan Guaido sets Feb 23 deadline for a showdown with Maduro.
The measures are seen as a wider attempt to undermine the Venezuelan president.
This is as the standoff between President Nicolas Maduro and opposition leader Juan Guaido continues.
He, however, did not specify where the aid came from.
The US president turns down Maduro's request for a meeting.
The president seeks to shore up his rule after a senior general defected to the opposition.
EU lawmakers voted 439 in favour to 104 against, with 88 abstentions, at a special session in Brussels.
Russia calls on opposition leader Juan Guaido drop demand for a snap election.
Europe signals it were set to follow Washington in recognising Juan Guaido as president.
Sources say there may be up to 400 Russian contractors in the country amid US-backed opposition protests.
Congress chief swore himself in as interim head of state with the support of the US and Canada.
The ally-turned-foe says Maduro doesn't deserve a second chance.