A dog rescued using the Jaws of Life after it was found stranded under a ramp at a ferry dock on Wednesday morning has not yet been claimed.

The eight-month-old bullmastiff was saved after some construction workers on their way to work heard the dog whimpering under a ramp at a launch on the mainland near Billy Bishop Toronto City Airport shortly after 6 a.m. When they moved in closer, they noticed the dog was sitting in water, beneath the grate.

Emergency officials were notified shortly after and the dog was freed about 30 minutes later.

"We had to use the Jaws of Life and some prying bars to lift (the grate) off," Fire Chief Sylvain Theriault told CTV Toronto on Wednesday.

Theriault said the dog, which wasn’t wearing a collar and didn’t have a microchip implant to identify its owner, was likely stuck under the ramp for at least an hour.

"It was shaking, scared, petrified," Theriault said.

Toronto Animal Services has taken the dog into custody. It is staying at an animal shelter, and will be put up for adoption in five days if no one comes forward to claim it.

With a report from CTV Toronto's Tamara Cherry