Update: I-65 situation worsens; all lanes closed; homes being evacuated because of explosion risk …

12:25 p.m. update: The truck is on fire, according to our reporters at the scene. A dark smoke cloud can be seen for miles. Noon update: In a few minutes, all lanes from the 41- to 50-mile markers will be clear of traffic and closed so cleanup can start. 11:38 a.m. update: Northbound lanes are being …