A funeral Mass was held Thursday morning for James "Whitey" Bulger in the mobster's native South Boston.
The private Catholic service was held at St. Monica-St. Augustine Church on Old Colony Avenue, the Boston Archdiocese said in a statement.
The 89-year-old Bulger, who was serving two consecutive life sentences for murder and other crimes, was killed in a West Virginia prison last week. He had just been transferred to the facility.
"Out of respect for the family and those who were hurt, it was a private service just for the immediate family," Father James Flavin, the church's pastor, said in the statement.
He added: "As Catholic priests we are called to bury the dead and pray for God’s justice and mercy. We entrust our final judgement to God."
Bulger's brother, William, who was state Senate president and head of the University of Massachusetts system, reportedly attended the funeral Mass.
The archdiocese wouldn't offer any other details on the funeral, but The Boston Globe reports the burial was also expected to be private.
Two Massachusetts mobsters are under suspicion in Bulger's killing, The Associated Press has reported. No charges have been filed.
This report was originally published by WBUR.