UPDATE: (CNN) -- Police burst into a home early Sunday in Trenton, New Jersey, finding a woman and her 13-year-old son dead, and her three other children being held hostage, authorities said.
The suspect, Gerald Tyrone Murphy, 38, was shot by police and died from his wounds, authorities said at a news conference. The other children were ages 18, 16, and 4, police said.
The raid ended a standoff that began Friday afternoon.
A preliminary investigation found that Carmelita Stevens and her son were killed approximately two weeks ago, police said.
CNN's Josh Levs and Rande Iaboni contributed to this report.
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(CNN) -- A three-day standoff in New Jersey involving a gunman barricaded with children ended Sunday morning, authorities said.
Trenton police Lt. Stephen Varn said three children inside the home were safe, but would not comment when asked if there were any dead bodies in the house.
Earlier, law enforcement officers said the gunman, 38-year-old Gerald Tyrone Murphy, killed his girlfriend and a child in the home, The Times of Trenton reported.
The gunman was taken into custody Sunday morning and the area is secure, New Jersey State Police Sgt. Adam Grossman told CNN. Grossman also would not comment on reports that a mother and a child were killed in the home.
The hostage situation began Friday afternoon, police said, but it was unclear how old the children are or their relationship to the man.
The gunman was holding three children hostage, officials said.
Surrounding blocks were evacuated as authorities, including a SWAT team and a hostage negotiator, tried to work toward a peaceful resolution.