The Paris Olympic Games men's triathlon has been postponed a day due to the River Seine's substandard water quality.

The organizing committee and the sport's governing body announced on Tuesday that readings at some points of the swim course exceeded acceptable limits.

They have decided to hold the men's triathlon on Wednesday after the women's triathlon, but said both races are subject to forthcoming tests.

Events featuring athletes swimming in the Seine have been one of the highlights of the Games. However, the water quality deteriorated after rain fell on Friday and Saturday, causing practice sessions to be canceled.