American sprinter Bobby Morrow, who won three gold medals at the 1956 Olympic Games in Melbourne, has died at the age of 84, World Athletics said.

Morrow won gold in the 100 and 200 metres and anchored the U.S. to victory in the 4x100m relay, in which they set a world record.

He is one four men to win these three events at a single Games, alongside Jesse Owens, Carl Lewis and Usain Bolt.

He was named Sports Illustrated's "Sportsman of the Year" in 1956 and set 11 ratified world records during his career.

Morrow who was only 21 when he achieved his feat, retired in 1958 to become a farmer and wood worker, although he later attempted to make the 1960 Olympics but missed the US trials with injury and did not make the squad.

U.S. media reported that Morrow died of natural causes at his home in San Benito, Texas.