CAPITOL HEIGHTS, Md. (CBSDC) — A 5-year-old girl died as a result of injuries sustained in a major fire in the Chapel Oaks neighborhood of Capitol Heights Wednesday afternoon.

Two other people, including a teenage boy, were also severely injured in the blaze.

A brick duplex in the 6000 block of Carrington Court, just off Martin Luther King Junior Hwy, caught fire around 4:30 p.m. The heavy fire on the first floor extended upward, eventually engulfing the second floor of the home.

Firefighters discovered the unconscious bodies of a 15-year-old boy and 5-year-old girl inside the residence. Both victims were categorized as extremely critical by first responders.

CPR was performed on at least one of the children.

Both the teenage boy and the young girl regained consciousness after being revived. Once stabilized, the boy was flown to the Burn Center at MedStar Washington Hospital Center.

Authorities announced the young girl had succumbed to the injuries she sustained in the blaze Wednesday night.

VIEW PHOTOS FROM SCENE OF FIRE

A 24-year-old suffered severe burns and smoke inhalation while escaping the burning duplex on his own. Authorities said the man was listed in critical condition at the scene.

Firefighters were able to extinguish the blaze within 45 minutes.

The cause of the fire is under investigation.