The United Nations Human Rights Office has said that at least 40 Venezuelans have died in recent protests over the power struggle between President Nicolas Maduro and self-appointed interim president Juan Guaido.

Earlier the United Nations Human Rights Council said 850 people have been detained since January 23, the day Guaidó declared himself president amid anti-government protests.

On January 23, 696 people were detained, the highest number of recorded detentions in Venezuela in 20 years, the United Nations Human Rights Council said.Guaidó, leader of the opposition and head of the National Assembly, quickly energized the movement against Maduro. Several nations — including the United States and Canada — have officially recognized Guaidó’s presidency. Others, including China and Russia, still support Maduro. Maduro has accused the United States of orchestrating a coupto remove him from the presidency.