A house fire on Monday on Detroit's northwest side that left three people dead and injured another was likely started by the home's electrical system, officials said.

Fire officials say “challenging circumstances within the house," including items that were obstacles for firefighters, made it difficult to get to the trapped victims.

Detroit fire officials are investigating multiple house fires that broke out Tuesday morning, including a blaze that destroyed two vacant homes and damaged one family’s home on Dwyer Street.

A 7-year-old boy died in a weekend house fire on Detroit's west side, officials said. Detroit firefighters were called shortly before 6 a.m. Sunday to the 12000 block of Rutherford Street near Plymouth and Greenfield roads for a fire in a home. Calls reported people were trapped inside the residence, according to authorities.

A 6-year-old girl died in a house fire on Detroit's west side Sunday morning, while a woman and 4-year-old boy were hospitalized with injuries.

An early-morning tragedy on Detroit's west side left three people dead and two others in the hospital after a fire broke out at a home.

The Detroit Fire Department responded to multiple calls early Tuesday involving house fires, with a firefighter injured at one of the scenes.

The Detroit Fire Department had a busy 24 hours, fighting two fatal fires that resulted in the loss of four lives.