(Two Fatal injury collisions)...They both occurred in the Glamis Sand Dunes are. Both occurred Friday. One at around 5:30 in the evening. The other at close to 8:00 pm. The California Highway Patrol says in the first incident, a 32 year old Arizona man was riding a 2020 Can-Am Maverick X3 UTV at an undetermined rate of speed near Gecko Road, south of Highway 78. The driver apparently lost control of the UTV and it overturned several times. Thye driver suffered fatal blunt force trauma and was pronounced dead at the scene. The second incident involved a 40 year old from Oceanside, California. He was driving a 2016 Yamaha  YXZ 100R. While in tow in the Imperial Sand Dunes Recreation Area. The CHP says the driver was unrestrained and not wearing a helmet. The 40 year old made an unsafe turning motion which caused the Yamaha to overturn. The driver was ejected and the Yamaha landed on top of him. The man suffered fatal injuries. Both collisions remain under investigation. Identities have not been released.