Grandfather set home on fire, killing his son and two grandchildren. Then he took his own life.

A grandfather killed his son and two grandchildren by setting their home on fire as they slept, officials said. But, the suspect killed himself in the same blaze.

Jafar Afshar, 67, was identified as the suspect, and his death in the fire was ruled a suicide, Penn Live reported after a press conference with police.

Dauphin County Coroner Graham Hetrick said Jafar killed his son Saeed Afshar, 36, and his two grandchildren, an 8-year-old boy and a 5-year-old girl, by pouring accelerant heavily inside the home and lighting it, according to Penn Live.

A GoFundMe for the children identified them as Darius and Zipporah Afshar. The fundraiser is at about $3,100 for their $3,500 goal as of Aug. 10.

All three deaths have been ruled as homicide. The causes of death were thermal burns and smoke inhalation for Saeed and his children, Penn Live reported.

Jafar also died of smoke inhalation and thermal burns, according to Penn Live.

The fire was first reported around 6 a.m. Aug. 6. Witnesses banged on windows and rang the doorbell to try to notify the residents about the fire, but were unsuccessful, according to Penn Live.

No motive for the murders was announced at the press conference attended by Penn Live.

Neighbors and community members staged a memorial Aug. 8 to remember the victims of the fire, Penn Live reported.