Residents of a South Texas city who evacuated before Harvey made landfall on the Texas coast as a hurricane are being warned not to return unless they bring their own food and water.

Officials with Victoria, about 90 miles north of Rockport, near where Harvey came ashore Friday night, said Sunday on Facebook that the city of 85,000 has no water service and limited power.

The statement says Harvey had a "devastating" impact on Victoria and it could be weeks before all electric service is restored.

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The city statement says: "For those that decide to come back to Victoria, bring enough food and water to last three to four days. Be sure you have enough gas in your car to last several days. Be prepared for no electricity at your home for several days or weeks."

A mandatory evacuation was ordered for Victoria County, where the city is located.

Bryan Simons, spokesman for the Victoria County sheriff's office, says, "We've got widespread damage. Lots of trees down, power lines. We've got traffic lights missing and lots of debris."