LONE TREE, Colo. (CBS4) – Two townhomes caught on fire in Lone Tree on Monday. The homes are located on Southern Hills Circle, near Lone Tree Parkway and Yosemite Street.

(credit: CBS)

Copter4 flew over the scene. Large flames could be seen coming from the homes.

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One person was treated for smoke inhalation and another was treated for minor burns. Both were taken to the hospital.

(credit: CBS)

Firefighters could be seen attacking the fire from the ground and the air. Officials said they were fighting the fire from three separate structures. They were able to control the fire in about an hour.

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“Firefighters were ‘defensive’ meaning they fought the fire in the middle townhome from the outside. They were ‘offensive’ battling fire from the inside of the outer two townhomes,” officials said on social media.

(credit: CBS)

One firefighter was seen cutting a hole in the roof as two other firefighters stoodby in a ladder bucket.

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(credit: CBS)

So far it’s not clear what started the fire.