Two people were treated for smoke inhalation after firefighters doused an early morning blaze in a downtown Charleston home, a department official said Thursday.

The fire ignited on Rosemont Street, and crews were sent there at 12:22 a.m., according to Ryan Kunitzer, a spokesman for the Charleston Fire Department.

The neighborhood is near the Septima P. Clark Parkway and President Street.

Firefighters found light smoke coming from the building, and they extinguished the small fire in the walls, Kunitzer said.

Two residents were taken to a hospital, where they were treated and later released.

Fire marshals were still investigating the cause of the blaze, Kunitzer said.

Reach Andrew Knapp at 937-5414 or twitter.com/offlede.