REVERE, MASS. (WHDH) - One person died after a triple-decker went up in flames in Revere early Tuesday morning.

Firefighters responding to a reported fire on Thornton Street around 2:30 a.m. learned that three people were trapped inside the burning home, according to Revere Deputy Fire Chief Glen Rich.

Two of the people were able to get out of the building, including a young girl who witness Gaudeseio Ocasio said jumped to safety from the second floor.

“My friend was trying to help a young girl,” he recalled. “She wanted to jump from the second floor and he tried to hold her but she was so scared that she still jumped and she fell to the brick.”

The third person trapped inside the home died in the fire, Rich said. Their name has not been released.

Two people were taken to a Boston hospital with undisclosed injuries.

The fire reportedly started on the second floor of the building and quickly spread to the top floor and the roof.

The cause remains under investigation.

This is a developing story; stay with 7NEWS on-air and online for the latest updates.

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