Authorities are investigating a deadly accident involving a pickup truck and a motorcycle.

It happened around 8:30 a.m. Thursday on Sheldon Road near Wallisville in east Harris County.

Authorities say a man was killed, but it is unclear if he was a pedestrian or on a bicycle.

The driver of the pickup was being detained, according to the Harris County Sheriff’s Office. Officials did not say why.

The intersection was closed while emergency crews were on scene.