The Arlington Police Department is investigating a fatality crash that occurred around 5 a.m. today in the 2100 block of State Highway 360. Traffic Investigators say a Honda Accord stalled in a southbound lane of traffic when it was struck by a pickup truck. Officers arrived to find a female victim outside of the vehicle and a nine-month old infant inside a car seat in the back seat. The infant died a short time later at a local hospital. The woman is still hospitalized. Officers say the driver of the pickup that struck the stalled car was not injured and is cooperating with investigators. This southbound section of SH 360 was closed for a brief period this morning and has since re-opened.