Julia Hudson and Jennifer Hudson attend the 1st annual Julian D. King Gift Foundation Hatch Day celebration at De La Salle Institute on August 14, 2011 in Chicago, Illinois. Credit: Daniel Boczarski/Getty Images

Jennifer Hudson's sister Julia Hudson's heartbreaking 911 call was released Monday.

Although the prosecution asked that the tape not be released, Judge Charles Burns granted the release Monday in the murder trial Julia's estranged husband William Balfour -- the accused killer of Hudson's 57-year-old mother Darnell Donaldson, 29-year-old brother Jason Hudson and 7-year-old nephew Julian King.

"Help, please," Julia begs in her call to 911 obtained by E! News. "Oh, God. Somebody's killed my mother, somebody's killed my mother...Please help me. Oh my God, oh my God."

The dispatcher asks her if an ambulance is needed and Julia says, "I don't know. I'm scared...please...please...can you please send an ambulance, please. Oh my God."

"She's on the floor and I see blood coming from her head...I just came home from work and there's a bullet hole in our front door...she's 57 years old. Please help my mama," she cries. "Please just send an ambulance."

Julia can also be heard on the tape reportedly asking a neighbor, "Where's my brother? What happened? She's on the floor…I'm here by myself."

The three Hudson family members were shot and killed on Oct. 24, 2008 and Balfour is charged with three counts of first-degree murder. Jennifer, 30, testified on the stand last Monday in Chicago on the first day of the murder trial and said she warned Julia not to marry Balfour.

"I told her over and over again to not marry him," she said. "We did not like how he treated her."