Two people have been injured while working underground on the construction of a TTC tunnel near York University Friday morning.

Toronto police said they were alerted to an accident near Steeles Avenue and Jane Street shortly after 7:30 a.m. and received a request for an ambulance after two people were injured in a tunnel.

Two men, one believed to be 42 and the other 26, suffered non-life-threatening injuries to their backs and chests while working in a shaft between 60 and 100 feet underground.

TTC spokesman Brad Ross said a worker was at the bottom of the tunnel shaft when he was struck by a backhoe.

The injury to his back was serious enough that he was unable to walk up the stairs and had to be lifted out of the tunnel with a construction crane.

Toronto EMS said another man suffered minor injuries but was able to exit the tunnel on his own.

Both men were taken to hospital with non-life-threatening injuries.

The accident comes little more than two months after a construction worker died when a construction crane collapsed at a TTC excavation site.

A 25-year-old worker died and several others were injured in the accident on Oct. 11, 2011 near York University's Schulich School of Business at James Gillies Street and York Boulevard.