Suffolk Fire & Rescue responded to two residential structure fires on Sunday.

The first was in the 400 block of St. James Avenue and was reported at 8:27 a.m. Firefighters arrived on scene at 8:32 a.m., according to a city press release.

The two-story duplex had heavy smoke showing from the rear of one of the units when firefighters arrived, the press release stated. The fire damaged the bedroom and extended to the hallway with smoke damage throughout the unit. The other unit also suffered some fire damage.

The fire was marked under control at 9:02 a.m., the release stated. None of the residents were home at the time, and there were no injuries.

A total of seven occupants were displaced, with one adult and four children from one unit and two adults from the other. The American Red Cross is assisting all of them.

The cause of the fire is under investigation.

The second fire, in the 100 block of Kingsdale Road, was reported at 1:47 p.m. The first units arrived at 1:51 p.m., the press release stated.

Heavy fire was showing from the roof when firefighters arrived. There was damage to the attic and roof of the home, and the fire was marked under control at 2:22 p.m. Two adults, two children and two dogs made it out safely. No injuries were reported.

The occupants were displaced, and the fire is under investigation by the Fire Marshal’s Office.