The death of a 39-year-old man while in Boston police custody is under investigation by Suffolk District Attorney Rachael Rollins’s office.
The name of the man was being withheld pending notification of next of kin, officials said.
Sergeant Detective John Boyle, a Police Department spokesman, said the man was taken into custody by police on a fugitive-from-justice warrant issued by New Hampshire authorities. Information about the New Hampshire case was not immediately available, he said.
Police also did not give information about when and where the man was taken into custody.
The man told police he was homeless when he was taken into custody, Boyle said.
In a statement, Rollins’s office said the man was being held in a single cell at the Area D-4 station in the South End.
Around 8:47 a.m. Tuesday, police found the man unresponsive in his cell, Rollins’s office said.
The state medical examiner’s office has concluded an autopsy, but determination of the cause of death is pending toxicology results.
According to Rollins’s office, a “senior prosecutor” will oversee the death investigation.
Boyle said no signs of trauma were found during the autopsy.
He also said the man was alone in a cell while in police custody.