One person was was killed in a fire early Tuesday at a nursing home in DeKalb County.

The two-alarm blaze broke out around 3 a.m. at the Meadowbrook Nursing Home in the 4600 block of Lawrenceville Highway near Tucker.

DeKalb fire Chief Edward O'Brien told the Atlanta Journal-Constitution that the fire was contained to one room on the second floor of the two-story building and was actually doused by the facility's sprinkler system.

One person in that room died, and a second person was transported to a local trauma unit, O'Brien said. A third person was taken to the hospital for treatment of minor smoke inhalation.

O'Brien said the nursing home houses 128 residents. He said 75 of those residents were evacuated from the second floor to the first floor.

"We were fortunate that the first floor was safe so that we could move them in this cold weather and keep them inside," he said.

"The plan is they are going to keep everyone here," O'Brien said. "The facility is safe and we haven't had to cut any utilities."

The chief said several investigators were on the scene attempting to determine what started the fire, but that it could be several hours before the cause is known.

The names of the person killed and those injured were not immediately available.