Police are on the hunt for a bank robber in downtown Halifax.

Investigators say a man walked into the TD Canada Trust on Spring Garden Road just after 10:30 a.m. Wednesday, threatened staff and demanded cash.

The suspect then fled on foot with an undisclosed amount of cash.

However, it appears a dye pack may have exploded in the money bag.

Police were seen examining a bag that was dumped under a car in the 5400 block of Doyle Street, which runs parallel to Spring Garden Road, just one block away.

A K9 unit has been called in to help police locate the suspect, who is described as a white male in his early 50s.

He is roughly five-foot-five inches tall with a medium build and wore a dark, puffy jacket and dark toque at the time of the incident.

Police say no one was injured.