A serious collision in Danbury last night closed Lake Avenue Extension for nearly 4 hours. Emergency responders were called to the area of the Maron hotel around 7:30pm and found that a pickup truck and a small SUV collided head on. The driver of the pickup truck sustained minor injuries. The SUV rolled over, pinning the driver in the wreckage. It took firefighters about 20 minutes to stabilize the vehicle and extricate the driver using the Jaws of Life tool. The patient was transported to the hospital. The accident remains under investigation. Lake Avenue Extension was closed for about 3-and-a-half hours.