Two workers were rushed to the hospital on Monday morning after a construction site accident in North Miami Beach. 

According to Miami-Dade Fire Rescue, the accident happened at a building under construction at NE 163 Street and Biscayne Boulevard. They said it came in as a medical call, with reports of a "possible mechanical failure" at the site.  

North Miami Beach police initially reported this was a fall from a scaffolding. 

The injured workers were taken to HCA Florida Aventura Hospital. Police said one person suffered life-threatening injuries and was in critical condition. The other workers' injuries were less severe, according to police, and they were listed as stable.