Courtesy Prince George's County Fire Chief Marc Bashoor
GLENARDEN, Md. (WUSA9) -- Firefighters arrived within 5 minutes of the first 9-1-1 call, but even that was too late.
The family talked with WUSA9 as they arrive at one of the most awful sights they could imagine.
The uncle of the four children came to the house, desperate for answers.
Alan Howard said, "As soon as I seen the house. I knew it was my niece house so we rushed right over."
Another family member in tears told us, "My family is hurt."
The fire ripped through the home around 4 o'clock Thursday morning in the 8600 block of Leslie Avenue in Glenarden.
MORE: Get Out Alive-Preventing and Surviving Fires
The 33-year-old mother and her 8-year-old daughter jumped through a window.
"My niece ran to a neighbor's house," said a family member.
But four others were trapped inside the home.
Firefighters pulled the dad and the couple's 3 other daughters. They had no pulse, and all had to be given CPR.
The father, the 8-year-old twin sister, and her four-year-old sister all died. The 11-year-old is in grave condition as of Thursday night.
The family dog was found shivering inside the house more than four hours after the fire began.
Chief Marc Bashoor, Prince George's Co. Fire, "The only indication is, this was nothing more than a tragic accidental fire."
One that perhaps, could have been prevented. There were no smoke alarms.
Bashoor, "that particular fact is very sad and frustrating for me. We shouldn't have any more fires without a smoke alarm.
Yesterday a smoke alarm successfully woke the occupant. Today, tragically I've lost three people."
Chief Bashoor asks 'would smoke detectors have made a difference?' He says at least they could have had a chance.
Firefighters spent a couple of hours talking to neighbors and handing out literature and smoke detectors.
Thursday's tragedy brings the fatalities due to fire up to 9 so far this year. There were 10 for all of last year. The year before there were 20.