CARACAS, Venezuela • Venezuelans on Monday converged on a polluted river in Caracas to fill water bottles and held scattered protests in several cities as growing chaos took hold in a country whose people have had little power, water and communications for days.

A 3-year-old girl with a brain tumor languished in a Caracas hospital, awaiting treatment after doctors started surgery but then suspended the operation when nationwide power outages first hit on Thursday, said the girl’s fearful mother, who only gave her first name, Yalimar.

“The doctors told me that there are no miracles,” said Yalimar, who hopes her daughter can be transferred Tuesday to one of the few hospitals in Venezuela that would be able to finish the complex procedure.

The girl’s story highlighted an unfolding horror in Venezuela, where years of hardship got abruptly worse after the power grid collapsed. On Monday, schools and businesses were closed, long lines of cars waited at the few gasoline stations with electricity and hospitals cared for many patients without power. Generators have alleviated conditions for some of the critically ill.

There were also acts of kindness: People whose food would rot in fridges without power donated it to a restaurant, which cooked it for distribution to charitable foundations and hospitals.

The blackouts have also hit Venezuela’s oil industry. The country hasn’t shipped $358 million in oil since the power failures started, and “the whole system is grinding to a halt,” said Russ Dallen, a Miami-based partner at the brokerage firm Caracas Capital Markets.

Two large tankers are sitting empty at the Jose offshore oil-loading dock, and at least 19 other ships are waiting their turns there, Dallen said.

Engineers have restored power in some parts of Venezuela, but it often goes out again. There have been a few protests in Caracas and reports of similar anti-government anger elsewhere. Opposition leader Juan Guaido tweeted about reports of looting in some cities, but details were difficult to confirm.

Security forces in the city of Maracaibo dispersed “criminals” trying to take advantage of the power cuts, Mayor Willy Casanova told local media.

However, numerous videos posted on social media that purported to be from Maracaibo showed crowds roaming the streets and people running from looted, damaged buildings with no police in sight.

A man carries plastic bottles filled with water he collected from a pipeline left open Monday, during rolling blackouts which affects the water pumps in people’s homes, in Caracas, Venezuela. The blackout has intensified the toxic political climate, with opposition leader Juan Guaido blaming alleged government corruption and President Nicolas Maduro accusing his U.S.-backed adversary of sabotaging the national grid.

the associated press