A storm system that wrought havoc on the Oklahoma City metropolitan area, generating a handful of tornadoes that killed five people and sent tens of thousands scrambling for shelter, moved late Friday over Missouri. The National Weather Service warned a "confirmed and extremely dangerous tornado" was near the city of Harvester, about 25 miles northwest of St. Louis, according to a report of CNN. There were no immediate reports of catastrophic damage or major injuries in the St. Louis area, said Jeff Rainford, the chief of staff for Mayor Francis Slay. Lambert-St. Louis International Airport was closed because of the severe weather, and minor damage was reported to a terminal, he said. As authorities in Missouri urged people to take shelter, officials in Oklahoma were working to determine how many people had been killed and injured in the storm that battered the state's largest city.