A powerful Cyclone Nargis killed more than 350 people, destroyed thousands of homes and knocked out power in the country’s largest city last Saturday. Trees and electricity lines were down in the city after the storm’s whipping winds and torrential downpour.

This is the worst cyclone to hit the impoverished Asian country since 1926 and the highest death toll of any cyclone since Bangladesh in 1991.

At least 351 people were killed, including 162 who lived on Haing Gyi island off the country’s southwest coast, state-run television said. Many of the others died in the low-lying Irrawaddy delta.

“The Irrawaddy delta was hit extremely hard not only because of the wind and rain but because of the storm surge,” said Chris Kaye, the U.N.’s acting humanitarian coordinator in Yangon. “The villages there have reportedly been completely flattened.”

State television reported that in the Irrawaddy’s Labutta township, 75 percent of the buildings had collapsed.

“At the moment, we have such poor opportunity for communications that I can’t really tell you very much,” Kaye said.

Witnesses in Yangon said the storm’s 120 mph winds blew the roofs off hundreds of houses, damaged hotels, schools and hospitals, and cut electricity to the entire city.

The state-owned newspaper New Light of Myanmar reported Sunday that the international airport in Yangon remained shut. Domestic flights have been diverted to the airport in Mandalay, it said.

“It’s a bad situation. Almost all the houses are smashed. People are in a terrible situation,” said a U.N. official in Yangon, who requested anonymity because she was not authorized to speak to the media.

“All the roads are blocked. There is no water. There is no electricity,” she said.

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