Factbox: Games-related deaths

Nodar Kumaritashvili of Georgia competes during luge training ahead of the Vancouver 2010 Winter Olympics in Whistler, British Columbia, February 10, 2010.

(Reuters) - List of Olympic Games-related deaths after Georgian luge competitor Nodar Kumaritashvili died in a training crash for the Vancouver Winter Games on Friday.

According to Olympic historian David Wallechinsky, there has been no athlete deaths during official Winter Olympics competition. There have been two in Summer Olympics competition.

1912 Summer Olympics - Stockholm

Portuguese runner Francisco Lazaro was the first athlete to die in modern Olympic competition, when he suffered a heart attack while running the marathon. He was 21.

1960 Summer Olympics - Rome

Danish cyclist Knud Enemark Jensen collapsed during his race under the influence of drugs and later died in hospital. He was 23.

1964 Winter Olympics - Innsbruck, Austria

Polish-born British luger Kazimierz Kay-Skrzypecki was killed on a trial run on the Olympic course at Igls two weeks before the start of the Games.

The Games' downhill competition was also marred by the death of 19-year-old Australian Ross Milne, who died on a practice run after flying off the course and hitting a tree.

Weather conditions were cited as factors in both tragedies.

1988 Winter Olympics - Calgary, Canada

Austria's leading orthopaedic surgeon and Olympic team doctor, Joerg Oberhammer died on the slopes when he collided with a skier and fell beneath a snow grooming machine, dying instantly.

1992 Winter Olympics - Albertville, France

Swiss skier Nicholas Bochatay crashed into a snow-grooming machine on a public trail while training in the closing days of the Games and died.

2010 Winter Olympics - Vancouver

Georgian luger Nodar Kumaritashvili died in a training crash, which saw him thrown off his sled as it bounced over the rim of the track at around 90mph and slammed into a pole by the side of the course. He was 21.

(Writing by Neil Maidment; Editing by Miles Evans)