A series of traffic accidents across various locations have led to significant road closures and emergency responses. A fiery crash on northbound I-35 in Dallas left two people in critical condition and shut down all lanes as police began their investigation. In a separate incident south of Houston, a two-vehicle crash temporarily closed U.S. 63, but no injuries were reported. Clearwater, Florida, experienced a crash involving an overturned trailer that spilled debris, affecting traffic flow on the Courtney Campbell Causeway. Additionally, a major collision closed Highway 11-17 in Canada, with multiple vehicles involved and a fire reported at the scene. Authorities are urging residents to avoid the areas of these incidents as investigations continue.