Two people were killed in unrelated Friday-night traffic crashes in Jefferson County.

The Jefferson County Coroner’s Office on Monday identified the fatality victims as Lester Robinson Hill II and Heather Marie Underwood.

Robinson, a 31-year-old Fultondale man, was critically injured in a crash in the 900 block of Decatur Highway in Fultondale. The wreck happened at 6:56 p.m. Friday.

Authorities said Robinson was the driver and lone occupant of a pickup truck involved in a two-vehicle collision.

Robinson was taken to UAB Hospital where he was pronounced dead at 7:25 p.m.

Fultondale police are investigating.

Underwood, a 33-year-old woman from Odenville, died after a single-vehicle crash on Interstate 59 southbound in Trussville.

Authorities said her vehicle left the roadway and struck a tree.

Underwood was taken to UAB Hospital where she was pronounced dead at 8:22 p.m.

Trussville police are investigation.