Officials with Animal Friends in McKeesport said earlier this week that three dogs on the same street are being treated for liver failure and other symptoms that suggest they've been poisoned in recent days. Now, the owners of two more dogs say their animals appear to have been poisoned, too.
One of the first dogs reported ill, a boxer named Vader, was put down Tuesday after he lost about 20 pounds since becoming ill around Memorial Day.
Blood tests have confirmed the dogs were likely poisoned, though the tests have not pinpointed what substance was used.
McKeesport is about 10 miles southeast of Pittsburgh.