RIO DE JANEIRO (AP) -- The Rio 2016 organizing committee is increasing security at the Olympic Equestrian Centre amid reports of a second stray bullet at the venue.
A bullet fired from a nearby slum flew through the roof of a media tent at the center on Saturday and on Wednesday it was reported that a second one had come into the stables.
A statement from the organizing committee says security is "on-site now establishing the facts."
It adds that "additional security has been deployed to the venue to support the investigation and to ensure the safety of everyone on site, which is our top priority."
The entire competition venue is situated on military land and gunshots could be clearly heard throughout the day as the dressage competition continued.
There have been no reports of any injuries.