Additional information was expected later Sunday.
Woodbine Racecourse canceled Sunday racing as a result of an overnight fire in two barns on the track's backetretch.Track officials said some horses were believed to have died in the 3 a.m. blaze in barns 7 and 7A but additional details were not immediately available.They reported the fire has been extinguished and the cause is being investigated by Toronto Fire Services and Toronto Police Services.