At least four people have been injured after severe tornadoes ripped through north and central Texas on Monday, damaging homes and businesses, and leaving thousands without power, officials said. In Round Rock, Texas, a city of around 120,000 people located about 20 miles from Austin, multiple homes were destroyed after a tornado tore through the area, local officials said. “We could see a funnel on the south side of Round Rock. That funnel continued through the south side of the city,” Police Chief Allen Banks told reporters during a press briefing on Monday evening. Minor injuries were reported and buildings throughout the city suffered “extreme structural damage” after the tornado struck, Banks said. “There may be some homes damaged,” Round Rock Mayor Craig Morgan said at around 6:30 p.m. on Monday. “We are assessing the damage.” At least one tornado hit Elgin, east of Austin, causing major damage and some …