STAMFORD (AP) — Suspects in the killing of a Connecticut jewelry store owner have been taken into custody in New York on unrelated charges, authorities said Saturday.

Mark Vuono, 69, owner of Marco Jeweler in Stamford, was fatally shot in the head during a robbery at his store on March 28.

Stamford police Capt. Richard Conklin did not name the suspects, or say how many there are or where exactly in New York they were taken into custody, the Stamford Advocate reported.

Conklin said the arrests were the result of a partnership between Stamford police, the FBI and federal and state prosecutors.

“This took place Tuesday evening and involved a number of actions undertaken in New York in various boroughs and counties, which resulted in the parties being taken into custody,” he said.

Vuono's store was robbed in the early afternoon. The chief medical examiner's office said he died from a bullet wound to his head and ruled his death a homicide.