The victims, five men and one woman, were found at a home in N 21 and W Wright Streets in Milwaukee on Sunday.
Police found the six victims after they arrived at the home to carry out a welfare check at about 3:45 p.m., according to ABC affiliate WBAY.
The Milwaukee County Sheriff’s Office (MCSO) initially said five victims were found inside the home in a Sunday statement.
This was later revised to six victims after the Milwaukee County Chief Medical Examiner (MCCE) learned another person had died.
In a Monday morning update tweet, the medical examiner said: “An additional adult male homicide victim has been recovered at that location. Total victims: 5 males and 1 female.”
An MCSO statement said of the murders: “As a community, we must support the Milwaukee Police Department in its effort to bring closure to the families losing loved ones and bring to justice those responsible for these tragedies. These families deserve better and the people of Milwaukee County deserve better.”
The victims’ cause of death was not released to the public by either the MCSO or MCCE.
The Milwaukee Police Department (MPD) told Newsweek: “The victims had injuries that are suspected to have been caused by gunfire. MPD continues to seek unknown suspects.”
Anyone with any information is asked to contact Milwaukee Police at (414) 935-7360 or to remain anonymous, contact Crime Stoppers at (414) 224-Tips or P3 Tips App.
According to the Milwaukee Journal Sentinel, a record 197 people were killed in homicides in the city in 2021.
The publication also found that before Sunday’s discovery there had been 11 homicides in Milwaukee in 2022, with the majority having been shot.
Milwaukee County Sheriff Earnell R. James said of the killings: “The recent acts of violence are a stark reminder of the work that still remains to addressing the root causes of violent crime in our city.”
Following the grisly find, Milwaukee Mayor Cavalier Johnson said in a statement: “The murders discovered today on a residential block in the heart of our city are horrific.
“First I offer my condolences to the families and friends of the victims. Whatever the circumstances, we must share the grief of those who have lost loved ones.
He added: “It is important not to feel numbed by the ongoing violence in our community. A horrible crime has again occurred and it is not a movie or a fictional account.
“These victims died in our city, in one of our neighborhoods.”
Mayor Johnson continued: “We remain steadfast in our efforts to reduce violence. We will achieve that through strengthened and improved law enforcement, through community intervention and through a renewed commitment to prevention.
“Again, we can never accept murderous violence as routine, and we must together recommit ourselves to our shared responsibility to find solutions and make our city safer.”