Egyptian security officials say a suicide car bomb attack in northern Sinai has killed a 61-year-old man and his two children inside their home. The children were seven and three years old.

The officials say the explosion took place Friday in the town of Rafah, on the border with the Gaza Strip. The officials say the suicide bomber was targeting an approaching military convoy. One soldier and four civilians were wounded.

The officials spoke on condition of anonymity because they were not authorized to speak to reporters.

Egypt is battling an insurgency that has largely targeted troops in northern Sinai. The militants say they are avenging a government crackdown on Islamists.