Investigators said a wreck on an Arkansas interstate highway Friday morning resulted in three people drowning in a lake.

Police said that at around 8:51 a.m. the car went through a field, weeds, then into Hopefield Lake.

Officers said it's unclear how the vehicle went off the road and into the water.

The family was from Memphis. One adult female and two boys, ages 7 and 2, were in the vehicle. The family was pronounced dead once they were pulled from the lake, police said.

Arkansas police are working to find out if another car was involved.