An EF-4 tornado touched down and ripped through the southern Oklahoma city of Marietta on Saturday, leading to one person's death and the destruction of the Dollar Tree distribution center.Sky 5 flew over the devastation, showing the distribution center ripped open and debris from the building scattered nearby.Damaged vehicles were still in the grassy median along Interstate 35 as of Monday morning, and Sky 5 captured extensive damage to a nearby Homeland as well as semi-trailers at the distribution center.Oklahoma officials said on Sunday that one person died because of the severe storms that hit Marietta.On Monday, the Oklahoma Highway Patrol said the victim was a passenger in a semi-trailer that got blown over on I-35 during the storm. The report says the semi-trailer came to rest on top of a guardrail on its passenger side, and the passenger was ejected.The passenger, whose identity has not been released, was pronounced dead at the scene.The National Weather Service initially rated the tornado an EF-3 but increased it to a low-end EF-4 after consulting with an engineering expert. The Marietta tornado was among at least 22 that touched down on Saturday, and that number could increase as the National Weather Service continues surveying reported tornado damage.Top Headlines What we know: At least 4 dead, 100 injured after tornadoes ravage Oklahoma Preliminary reports show EF3 tornadoes hit Sulphur, Marietta; At least 27 tornadoes hit Oklahoma Holdenville grapples with devastation of losing homes, 2 lives in a tornado 1 confirmed dead in Sulphur tornado after search-and-rescue mission