Olympic sprinter Alex Quinonez shot dead in Ecuador

Sprinter Alex Quinonez (AP)

Ecuadorian sprinter Alex Quinonez has been fatally shot in the port city of Guayaquil, police said.

Quinonez, who was 32, became a national hero in 2012 when he reached the 200m final at the London Games, finishing seventh in a race won by Usain Bolt.