One woman was killed and a man injured after they crashed their car in northwest Houston.

Deputies said the two were traveling down W. Little York at Evergreen Trail at a high rate of speed around 1:45 a.m. on Sunday.

For unknown reasons, they could not navigate the curve of the road, slid off, hit a pole, and flipped into a ditch.

The female driver died at the scene. The male passenger was taken to the hospital in serious condition.

The names of the victims were not immediately released.