The attack happened on Thursday evening (local time) in the community of Lizon in northern Port-au-Prince, Lionel Lazarre, head of a Haitian police union, told The Associated Press.
The slayings occurred as the capital crumbles under the relentless assault of violent gangs that control 80% of Port-au-Prince while authorities await the arrival of a police force from Kenya as part of a UN-backed deployment aimed at quelling gang violence in the troubled Caribbean country.
Two of the victims were a young married couple, Davy and Natalie Lloyd, according to a Facebook posting from Natalie Lloyd's father, Missouri state Representative Ben Baker.
The third victim was Jude Montis, who was the local director of Missions in Haiti Inc.
MNA/PR