A witness said they were pulling into the Z station shortly after 6pm and saw a police officer, armed with what was believed to be a taser, approaching a man.
“There was another man on the ground beside a police officer.”
When returning to the scene minutes later, the witness said they saw two men in a standoff with police officers.
Another witness told the Herald the man on the ground and at least one police officer had been pepper sprayed.
Police said there were no reports of injuries in that incident and they were making inquiries.