article: A 13-year-old Maryland boy provided firefighters with instructions during a 911 call and got himself and his little sister rescued after his family's home caught fire on Sunday morning, . Marcus and his nine-year-old sister Aaliyah were trapped in a second-floor bedroom after the fire broke out on the first floor of their home in Clinton. The boy called 911 shortly before 7am after he smelled smoke and told the dispatcher the siblings were trapped in the room because it was too hot to get out through the hallway . Scroll down for audio . A 13-year-old Maryland boy called 911  after a fire broke out on the first floor of his home in Clinton on Sunday . Marcus, who stayed calm throughout the 11-minute call, told the dispatcher that his older brother, mother and step-father were also in the home, ABC News reported. He also soothed his sister after she blurted out, 'We're going to die', during the call and told her to 'stay low' and reminded her to breathe. While giving directions, the boy said: 'Go up the steps right in the back hallways. 'It's a black door to the right.' Marcus was able to stay calm throughout the 11-minute call and he was rescued along with his 9-year-old sister . Prince George’s County firefighters were able to enter the room by going through the home and breaking a window, according to the Washington Post. When firefighter Lt Kenny Ward entered the room, he handed Marcus out the window to another rescuer, according to Assistant Fire Chief Alan Doubleday. The 25-year veteran then gave his gas mask to the little girl after he felt her tug on his leg. Doubleday said: 'It was a heroic effort on his part. I can’t even put it into words.' The siblings were taken to Children's Hospital with non-life threatening injuries, WJLA reported. The three other family members were taken to MedStar Hospital after escaping on their own.
highlights: Marcus, a 13-year-old Maryland boy, provided firefighters with instructions .
  Smelled smoke when family's Clinton home caught fire Sunday morning .
  Was trapped in a second-floor bedroom with nine-year-old sister during fire .
  Soothed his sister after she blurted out 'We're going to die' during the call .
  Siblings saved and three other people in the home escaped without injury .
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  , . Marcus and his nine - year - old sister Aaliyah were trapped in a second - floor bedroom after the fire broke out on the first floor of their home in Clinton 
   before 7am after he smelled smoke and told 
   dispatcher 
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   on Sunday . 
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   brother 
   mother 
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   The siblings were taken to Children' s Hospital with non 
   life threatening injuries, 
  