A sixth horse has died at the Calgary Stampede after being hurt during chuckwagon races on Thursday night.
 Chuckwagon racing at the Calgary Stampede. © Calgary Stampede
|
The horse suffered a serious injury to its right front leg and was euthanized.
The event, with three days remaining, has caused unease among animal welfare groups over the number of deaths.
The first four fatalities occurred in little more than 24 hours. They arose from a shoulder injury which resulted in the animal being euthanised, a broken back from a bucking accident, and two heart attacks.
The fifth horse to die appeared unwell after a chuckwagon race on Wednesday evening and died about 40 minutes later, despite veterinary attention.
Last year's event saw the deaths of three horses and one steer.
The event involves about 7500 animals.