UPDATE: Fatal single-car crash kills one in Sioux Falls

SIOUX FALLS, S.D. (Dakota News Now) - Authorities say around 2:30 p.m. on Wednesday, a man died in a single-car crash.

Police spokesman Sam Clemens said the 73-year-old man from Sioux Falls was driving on River BLVD and negotiated the turn where the road curves into 18th st., but ended up going straight and drove over a median, hit a fence, and then struck a tree.

Life-saving measures were performed, but the man died on the scene. Authorities will conduct an autopsy to discover the cause of death and investigate whether drugs or alcohol played a part in the accident.