A mobile crane working on the Eglinton Crosstown LRT collapsed into the ground on Monday evening.
The incident occurred at Eglinton Avenue East and Mount Pleasant Road around 6 p.m.
Toronto Fire said the crane operator was not injured, while another worker suffered a minor injury.
On Tuesday, Metrolinx spokesperson Anne Marie Aikins said the injured worker slipped and bruised his knee and has been released from hospital.
Fire officials said it is believed that water erosion caused the ground to crumble.
A larger crane is in place to hoist a smaller crane out of a sinkhole that formed early last night at the Eglinton Crosstown construction site at Mt Pleasant/Eglinton. The operator was inside the control cab when he felt the ground underneath give way. He escaped ok. pic.twitter.com/EjEzAS0W1p
— carl hanstke (@carl680) November 24, 2020
A mobile crane sits about 10 feet off the ground, and has since been lifted out of the sinkhole.
The Ministry of Labour is investigating the incident.