The Nova Scotia RCMP says an SPCA worker is in hospital with serious injuries after being attacked by a dog.

Police say animal control responded to the Kings County SPCA in Waterville, N.S. around 7 p.m. Tuesday.

The 25-year-old woman sustained serious injuries and was taken to the Valley Regional Hospital in Kentville, N.S.

"The dog then latched on to our staff member's arm and didn't release,” said SPCA animal care director Sandra Flemming. “She was then able to yell for help from one of our other staff members, who came out to try to assist."

Investigators believe the dog got loose after the attack and made its way inside the Kings Regional Rehabilitation Centre.

"After a search of the area the dog had been located, and was contained in a room at another location until animal control attended," said Cpl. Dal Hutchinson, spokesperson for Nova Scotia RCMP.

The SPCA confirmed in a statement on Facebook that the dog has been humanely euthanized.

Staff say they were told the dog was friendly, but say animals can be unpredictable in unfamiliar surroundings.

"We're still kind of piecing together the events that happened,” said Flemming. “The level of the attack was significant and severe, not something we normally see at our shelters."

The woman is expected to make a full recovery.

With files from CTV Atlantic’s Ron Shaw.