Four firefighters were injured battling a four-alarm fire in the Wakefield section of the Bronx Tuesday, officials say.

The flames broke out on East 235th Street between Carpenter Avenue and White Plains Road just before 1 p.m., officials say. The fire spread next door from a multifamily building at 636 E. 235th St. It was under control in about two hours.

The blaze was caused by children playing with fire on a stovetop, according to the FDNY.

Officials say four firefighters were sent to Jacobi Medical Center. Three of the firefighters were critically injured. Officials say a 34-year-old FDNY member suffered a heat stroke, a 44-year-old firefighter was injured in a crash while driving a firetruck and another firefighter, age 51, suffered a heart attack but is now stable. The one firefighter released from the hospital had second-degree burns.

None of the residents or neighbors were hurt.

The Red Cross was on scene to assist seven displaced families.