A construction worker has died after plunging 55 floors from a worksite onto the roof of a nearby building, Toronto EMS said.

Toronto police Capt. Mike Strapko said the man was on the 70th floor of a building at about 12:30 p.m. at 388 Yonge St. when he plunged 181 metres to the 15th-floor rooftop of an adjacent building.

Strapko said the man was found about 24 metres away from the under-construction condo building.

EMS said they were having difficulty reaching the man because the roof area he landed on was believed to be unstable. He was later pronounced dead on scene.

A Ministry of Labour spokesman said an inspector and an engineer had been sent to the construction site.

Site operator Reliance Construction said in a statement Friday evening the worker was an employee of one of its subcontractors.