POZA RICA, Mexico (AP) – Fifteen minutes before water from a flooded stream swept into her home, Lilia Ramírez took off running with what little she could carry.When she returned she found not only damage from the water that had flooded her first floor to the ceiling, but the oil it had carried now streaking her walls.

Poza Rica is an oil town, and among the challenges confronting some residents who fled flooding that has killed 64 people across five states and left 65 missing, is residue from the oil that built this city not far from the Gulf of Mexico. Authorities say some 100,000 homes across the region have been damaged by the torrential rains and flooding.

“Never before has it been tarred before like that,” Ramírez said Monday standing in her devastated ground floor, where walls that had once been pink were now vertically striped with black.

Mexico has deployed some 10,000 troops in addition to civilian rescue teams.Helicopters have ferried food and water to the 200 some communities that remained cut off by ground and carried out the sick and injured.

“there are sufficient resources, this won’t be skimped on … as we’re still in the emergency period,” President Claudia Sheinbaum said during her daily press briefing Monday.

But on some streets in Poza Rica, 170 miles (275 kilometers) northeast of Mexico City, the cleanup of mud and debris was complicated by thick oil deposits on trees, roofs and vehicles tossed by the current that swept through Friday.

Parts of Veracruz state received some 24.7 inches (62.7 centimeters) of rain from Oct.6 to 9.

Ramírez said that at other times of heavy rains, the state oil company Pemex had drained nearby areas with oil to avoid it spreading.

Roberto Olvera, one of her neighbors, said that a siren from a nearby Pemex facility alerted them to danger. “It was a really anguishing moment because a lot of p