WATCH: New Orleans Mayor LaToya Cantrell discusses Hurricane Ida aftermath

New Orleans Mayor LaToya Cantrell provided an update on Wednesday after Hurricane Ida devastated the region.

Watch Cantrell’s remarks in the player above.

Louisiana residents still reeling from flooding and damage caused by Hurricane Ida scrambled for food, gas, water and relief from the sweltering heat as thousands of line workers toiled to restore electricity and officials vowed to set up more sites where people could get free meals and cool off.

Power and water outages affected hundreds of thousands of people, many of them with no way to get immediate relief.

“It’s a big mess and most people have left town. I think part of that is due to the power outages,” New Orleans Summer Fields told British broadcaster Sky News.

New Orleans and the rest of the region were under a heat advisory, with forecasters saying the combination of high temperatures and humidity could make it feel like 106 degrees Fahrenheit (41 degrees Celsius) on Wednesday.

New Orleans officials announced seven places around the city where people could get a meal and sit in air conditioning. The city was also using 70 transit buses as cooling sites and will have drive-thru food, water and ice distribution locations set up on Wednesday, Mayor LaToya Cantrell said. Louisiana Gov. John Bel Edwards said state officials also were working to set up distribution locations in other areas around the state.

A man had his arm ripped off by a large alligator while walking through floodwaters from Hurricane Ida and is now missing, a Louisiana sheriff said.

The 71-year-old man’s wife told sheriff’s deputies that she heard a commotion around noon on Monday, then walked outside to see the gator attacking her husband in the New Orleans suburb of Slidell, the St. Tammany Parish Sheriff’s Office said in a statement.

“It really freaked us out because it’s only one road over from ours, it’s like on the next road over. And so, just the thought of an alligator being loose out here terrifies me, I’m not gonna lie to you. The thought of that happening to that poor guy was very very sad, I mean, I can’t even imagine what he or she went through,” said Paula Jacobsen, New Orleans resident.

READ MORE: How to help people affected by Hurricane Ida

The number of deaths from the hurricane climbed to at least four in Louisiana and Mississippi, including two people killed Monday night when seven vehicles plunged into a 20-foot-deep (6-meter-deep) hole near Lucedale, Mississippi, where a highway had collapsed after torrential rains.

More than 1 million homes and businesses in Louisiana and Mississippi were left without power when Ida slammed the electric grid on Sunday with its 150 mph (240 kph) winds, toppling a major transmission tower and knocking out thousands of miles of lines and hundreds of substations.

An estimated 25,000-plus utility workers labored to restore electricity, but officials said it could take weeks.

“I was born and raised in New Orleans, and New Orleans people are resilient. And we’re gonna get through this, we always do, so just hand tight, God is on our side,” said Raymond Rock, New Orleans resident.

Some residents relied on generators, raising concerns about carbon monoxide poisoning. Our Lady of the Lake hospital in Baton Rouge had already treated more than a dozen people for carbon monoxide poisoning by late Tuesday afternoon, spokesman Ryan Cross said.

Elsewhere in New Orleans, drivers lined up for roughly a quarter-mile (400 meters), waiting to get into a Costco that was one of the few spots in the city with gasoline. At other gas stations, motorists occasionally pulled up to the pumps, saw the handles covered in plastic bags and drove off.

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