FALMOUTH, Ky. — A five-year-old was killed following a fire in Northern Kentucky Saturday morning.

A public information officer with Pendleton County Sheriff's Office said firefighters with Falmouth Volunteer Fire Department received a call about the fire around 6 a.m. at a duplex on Chapel Street.

At the time of the fire, a mother and her three children were asleep when the fire broke out. The father was on his way home from work.

The mother was able to get her eight-year-old and 16-month-old baby out safely through a second-story window with help from a Falmouth police officer, the release said.

Officials said the mother tried to rescue her five-year-old son, but was not able to because of the intense heat and smoke.

The mother was forced to jump out the second-story window as the fire department was arriving.

The release said firefighters located the five-year-old boy in the bedroom, but he had died from the smoke and heat.

Right now, the cause of the fire is unknown.

The fire remains under the investigation of the Campbell County Fire Investigation Team and the Pendleton County Sheriff's Office.

The families being displaced by the fire are being helped by the American Red Cross.