In recent years Colombia has welcomed 1.8 million Venezuelans fleeing their country's economic and political collapse
Apart from $15 million reward for Maduro, US also announced a $10 million for information leading to the arrest of his associates in the drug trafficking case.
Maduro ordered a nationwide quarantine starting Tuesday to slow the pace of infection
India accounted for about a third of Venezuela's oil shipments in January
Trump invited Venezuela's opposition leader Juan Guaido to watch his State of the Union address from the guests' gallery above
The oil-producing nations will decide whether to stick with production cuts they've endured for the past three years, relax them or deepen them in the hopes of propping up prices
The United States in January prohibited US-dollar transactions for oil sales from Venezuela's PDVSA or its units
Washington blames Maduro for the country's economic collapse and for undermining democracy
Venezuelans since Thursday afternoon have been in the grips of the worst blackout in the history of the oil-producing country
Venezuelan leaders have treated state oil money as a slush fund for themselves and their cronies
Maduro retains the backing of Russia and China and control of Venezuelan state institutions including the military
Venezuela has sent its oil minister, Manuel Quevedo, to India to convince refiners, including Reliance Industries Ltd and Nayara Energy Ltd, to double their oil purchases
Venezuela's exports have already fallen to little more than 1 million barrels per day (bpd) in 2018 from 1.6 million bpd in 2017, according to Refinitiv ship-tracking data and trade sources.
Washington said on Monday proceeds from PDVSA's sales to companies in the United States will be frozen until a new government can take control of the accounts
However, the black market rate for the dollar was 30 times the official rate, as the government artificially overvalued the bolivar
Spain, France, Germany, Portugal and the United Kingdom on Saturday also gave Maduro an ultimatum of eight days to call new elections or they would recognise Guaido as president
National Assembly speaker Juan Guaido says he is president, but so does Nicolas Maduro, the authoritarian leader who the reins of power.
The investors hold bonds with a face value of around $380 million
The case stemmed from cash-strapped PDVSA's chronic delays in paying dividends to foreign firms
Despite political instability, the country's benchmark has been the best performer in the world