Police said they received a report of a collision between two vehicles, one of which was towing a horse float, in the McLean's Island Rd area around 11am.
There were no injuries to anyone involved, including the horses, but one person was reported to be in shock.
The vehicles blocked part of the intersection of McLean's Island Road and Aviation Drive for a short time before the horses moved to another float and vehicles towed.
It wasn't clear how many horses were involved.