Four people die in a crash on the A38 near Derby, Derbyshire, including a baby girl, police confirm. Multiple outlets report that the car hits trees on Saturday evening and that four occupants are pronounced dead or later die following treatment. One report says a baby is taken to hospital but dies shortly afterwards. The other three victims are adults, including a 36-year-old man and two women aged 18 and 30, according to one outlet; other reports describe the three as three adults without giving full ages. Derbyshire police also state that the driver is arrested following the collision. Several sources say the arrest is on suspicion of causing death by dangerous driving. Emergency services respond at the scene, and the incident triggers an investigation into the circumstances of the crash. Police have not reported any additional details about the vehicle, cause of the impact, or whether conditions such as weather were factors in the available accounts.