A construction worker was taken to hospital Wednesday morning after being pinned down by a nearly 3,000-kilogram beam at a TTC site in the Keele Street and York Boulevard area near York University, police said.

The 27-year-old man was freed by emergency crews using a crane after becoming trapped in a 9-metre deep pit, and sustained injuries to his lower body.

He was conscious and alert at the scene but remains in serious condition.

It is believed to be the same construction site where a man was killed in October 2011.