STAMFORD - (AP) - Authorities say a man has died of unknown causes after struggling with Stamford police officers who were called to a city home to detain him.

The man, whose name was not released, was pronounced dead atStamford Hospital after the incident Wednesday morning.

Connecticut State Police say Stamford officers were called to aLafayette Street home on a report that the man was agitated and aggressive, and that officers had to use pepper spray and a Taserto subdue him.

They say he went into "medical distress" after beinghandcuffed, and was treated at the scene until an ambulance arrivedto take him to the hospital.

State police officers are investigating the incident.