An investigation is underway in Modesto after an early morning rollover crash left one person dead, authorities say.

Modesto Fire says first responders were called to the intersection of Floyd and Roselle avenues just after midnight Thursday after reports of a crash.

At the scene, firefighters found that a vehicle had rolled over. One person was found on the ground, first responders say.

Life-saving measures were started, but firefighters say the person was soon pronounced dead. The name of the person has not been released at this time.

Modesto police say it appears the driver wasn't able to navigate the roundabout at the intersection, leading to the crash. 

No other injuries were reported.