Venezuela engulfed by darkness amid massive outage

Residents cross a street in the dark after a power outage in Caracas, Venezuela, Thursday, March 7, 2019. A power outage left much of Venezuela in the dark early Thursday evening in what appeared to be one of the largest blackouts yet in a country where power failures have become increasingly common. Crowds of commuters in capital city Caracas were walking home after metro service ground to a halt and traffic snarled as cars struggled to navigate intersections where stoplights were out. (AP Photo/Eduardo Verdugo)

Mothers and relatives wait outside of an intense care room for babies at a clinic, during a power outage in Caracas, Venezuela, Thursday, March 7, 2019. A power outage left much of Venezuela in the dark early Thursday evening in what appeared to be one of the largest blackouts yet in a country where power failures have become increasingly common. (AP Photo/Ariana Cubillos)

Much of Venezuela remains engulfed by darkness amid one of the largest power outages in years, raising tensions in a country already on edge from ongoing political turmoil.

The blackout hit 22 of 23 states by some accounts. It struck the capital Caracas, which until now has been spared the worst of a collapse in the nation's grid, at the peak of rush hour Thursday.

Thousands of commuters flooded into the streets because subway service was stopped. A snarl of cars jammed the streets amid confusion generated by blackened stoplights. Others had to walk long distances to get home.

The blackout continued into early Friday.