UPDATE: Dunmore Police say a mother and two of her children were the three victims killed in the early Tuesday morning fire. They are 26-year-old Ebony Thompson, 2-year-old Tiara Session and 5-year-old London Session.

Officials say Darkell Session, 24, the father of the children, has been hospitalized as well as 3-year-old Serenity Session. Another child, 1-year-old Dallas Session is currently in critical condition.

A fourth survivor of the fire was not injured. He lived in an apartment in the back of the building.

DUNMORE, LACKAWANNA COUNTY (WBRE/WYOU-TV) — Three people are dead and four others are hospitalized after a devastating apartment fire in Dunmore.

Pictures capture flames destroying the building on Third Street where at least seven people lived in the three apartments on the second and third floor. Three people were unaccounted for after the flames were put out.

The Lackawanna County District Attorney, Mark Powell, confirmed with Eyewitness News that the bodies of those three people were discovered on the top floor of the home. First responders said the missing were a mother and two children. Their identities have not been released pending notification of next of kin.

State Police, Dunmore Police, and the Lackawanna County District Attorney’s office are investigating.

“We’re investigating cause and origin of all fires of this nature,” Powell said. “Clearly when there is a death we are concerned. Right now, we are just in the beginning stages of that investigation.”

Julie Frick, a Dunmore resident, says she was woken up by her son around midnight Tuesday just a few homes away from the scene.

“I just actually saw the people yesterday going up the steps. It was very heartbreaking to watch,” Frick said.

She spent all day watching the investigation unfold.

“It was just horrific, the flames were coming through the roof,” Frick said. “My heart just literally dropped because I know there are children living there.”

A Pennsylvania State Police Fire Marshal on the scene has confirmed that the fire started on the second floor. There is no damage to the first floor.

Tuesday afternoon, Cherry and Third Streets were closed and officials on the scene asked motorists to use alternate routes. The investigation is ongoing and Eyewitness News will bring you the latest information as it becomes available.