The International Cycling Union says it will check Tuesday to see if a wildfire has impacted the mountain bike course for the Rio Olympics.
Ash from the fire roughly 10 miles from the Olympic field hockey venue littered the playing surface before the Monday evening session of the women's quarterfinals in that sport.
High winds rattled and shook the media workroom tent on the site and blew smoke and ash into the area. Germany and the United States had finished playing about an hour before the problem became noticeable.
The mountain bike center is about 2 miles from the field hockey venue.
The UCI says it is has been told that the fire is under control.
Practice on the mountain bike course begins Wednesday. The women's race will be held Saturday, with the men's race on Sunday.
