Five killed in latest Oklahoma tornado A mother and child have died as tornadoes moved through Oklahoma City, US authorities say. TORNADOES have killed at least five people and wreaked massive damage in Oklahoma near the battered city of Moore, still recovering from a monster twister two weeks ago. The Oklahoma Medical Examiner's office confirmed the death toll on Saturday but said it had no further details on the victims. However, the Oklahoma Department of Emergency Management confirmed a mother and child were killed in a car on Interstate 40 near Oklahoma City. At least 12 people were also injured in the storm, with the number expected to rise, the agency said. Several people were hurt in crashes and overturned vehicles, including semi-trailers and trailers, Oklahoma Highway Patrol spokeswoman Betsy Randolph told NBC television affiliate KFOR. "It is a heartbreaking situation," Randolph said. While storms continued to pass through the state, Department of Emergency Management spokeswoman Keli Cain said, "they're much less severe." However, "there's still a lot of flooding in areas," she said, warning residents to stay off roads and avoid high water. Forecasters lifted an emergency for parts of the tornado-prone midwestern state, though flash flood warnings, severe thunderstorm warnings and tornado watches remained in place. National Weather Service's Storm Prediction Center in Norman, Oklahoma warned the severe weather was shifting eastward on Saturday, with the Ohio and Mississippi River Valleys set to receive the bulk of the storms. "Some of the rainfall is expected to be quite heavy and a threat of severe weather will continue," the weather center said on its website. In Missouri, which borders the Mississippi River, Governor Jay Nixon declared an emergency on Friday night, urging "Missourians to closely monitor weather conditions, so they can take shelter or move to higher ground if needed." Reports said five twisters had struck the area around Oklahoma City, with winds of up to 145km/h accompanied by very large hail. The Moore tornado affected a total of 33,000 people, with winds above 340km/h.