Officials have revealed that a 79-year-old Canadian subway rider allegedly was mugged by two men in their 20s, as fellow riders looked on and did not place calls for help.

The National Post has reported that the two men allegedly took the elderly man's wallet on the train in Toronto on Saturday after the victim tried to activate the passenger assistance alarm, but couldn't reach it. The victim chased the two when they got off the train, but was unable to apprehend them.

Police would never want citizens to intervene in a robbery, but would expect witnesses to help by calling 911, alerting a train official or by some other means, Constable Wendy Drummond said.

Drummond said, "It is disappointing that nobody would come to his assistance. To date, we haven't had any witnesses come forward. We know there were other people there."

The two suspects' images likely were caught by security cameras, Drummond further added. (With Inputs from Agencies)