Updated Sept. 13, 2:55 p.m. with the victim's identity -- A man in his 20s was fatally shot Tuesday morning inside a Stoughton Street barbershop between Uphams Corner and Jones Hill, police said.

The shooting at 114 Stoughton St. was reported around 10:46 a.m., according to police spokeswoman Myeshia Henderson.

Alberto Monteiro-Pire, 21, of Dorchester, suffered life-threatening injuries. EMS Lt. Richard McCreedy said they transported him to Boston Medical Center. Police told civic association members Tuesday that the victim was armed at the time, was known to the police and had been injured two months prior in a daytime shooting near the intersection of Adams and Parkman streets.

Police said Monteiro-Pire later died.

Henderson said the shooting occurred inside the barbershop -- Creole International Style, which shares an entryway with a hair braiding salon next door.

No arrests have been made.