BOSTON (WHDH) - Crews battled a large fire in Dorchester Wednesday morning, with a large number of trucks responding to the narrow neighborhood streets.

Boston Fire confirmed the fire on Carson Street was knocked down before 6:30 a.m., saying that 33 people were displaced from the blaze.

All residents and pets are accounted for; two elderly residents were rescued via ladder from a third floor unit.

Victoria Key lives next to one of the burning buildings and woke up to neighbors yelling as people tried to get out of danger.

“It’s very, very scary, Key said. “I was just more concerned once I learned we were definitely safe that everyone else in the other houses got out ok.”

The Boston Fire Commissioner Paul Burke said the fire spread quickly and was out of control until firefighters were able to properly address it. Additionally, the narrow alleys between the buildings and the close proximity of active power lines made firefighting efforts more challenging.

“The circumstances were tough here,” Burke said. “The buildings were full of people. The wires in front of the building made it difficult, these wires are live and you can’t put a ladder truck against these wires.”

Boston Fire said the fire was reported around 5 a.m. Wednesday and that it started in one house before spreading to adjacent buildings on both sides.

One firefighter was injured.

“The first arriving companies – they did a great job knocking it down,” Burke said. “They had rescues to perform so they had a lot of help coming but it wasn’t there initially so they did a great job knocking down the fire and getting these people out.”

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

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