Carlton have been plunged into an off-season crisis with a number of players forced to report to hospital after suffering complications from allegedly taking recreational drugs. 

7NEWS understand the group was partying at a player’s house on Saturday night.

It’s believed at least three players have required emergency medical care. 

Ambulance Victoria confirmed they responded to an incident in the early hours of Sunday morning with Advanced Life Support paramedics attending the scene.

A man in his 20s was then taken to hospital with upper body injuries in a stable condition.

The players are currently on leave from their club. 

Carlton have been contacted for comment. 

More to come ...