An unlicensed Tibetan Mastiff had to be put in a shelter after biting six people in the town of Jiuting in Songjiang district, local media reported Thursday.

The dog, whose breed has a reputation for aggression, had been locked up in a frozen seafood warehouse on Jiuyi Road, according to the Xinmin Evening News. At some point Sunday evening, the dog managed to get loose and began attacking passersby, said a man surnamed Xu, who worked in a building next door.

"I heard people screaming from my office around 7 pm. I looked out the window and saw a woman had been bitten," Xu told the newspaper.

He rushed to the warehouse to find the dog's owner, but no one was there. The dog then attacked him, according to the report. The animal bit four other people before police eventually captured it.

Five of the victims were sent to the hospital for treatment, where they had to get injections against rabies.

The dog owner has paid for the victim's medical expenses, and the parties are still discussing compensation, according to the report.

According to animal control regulations that went into effect in May 2011, residents are not allowed to raise Tibetan Mastiff, Wolfhound or Bulldog breeds, which are considered dangerous.

Dog bites remain a common occurrence, according to local media reports.

In August, a Tibetan Mastiff breed bit four people. Three Rottweilers severely injured three people in July. And an Alaskan Malamute wounded a middle-aged woman in June.

Global Times