Egyptian mourners carry the coffin of Ahmed Kamal, one of the two policemen who were killed in a bomb attack, during his funeral on Nov. 6.

CAIRO — A bomb blast aboard a train north of Cairo killed four people, including two policemen, and wounded nine, officials said Thursday it was the latest attack by suspected militants battling the government of Egyptian President Abdel-Fattah el-Sissi.

The blast took place shortly before midnight Wednesday in the Nile Delta, the officials said Also late Wednesday, three people were wounded when a homemade bomb went off aboard a commuter train in the Cairo suburb of al-Marg, according to the officials.

And on Thursday morning in Cairo, a woman was slightly wounded when a homemade explosive device went off near one of the city’s presidential facilities, the infrequently used al-Quba palace, the officials said, speaking on condition of anonymity because they were not authorized to talk to media.

Egypt has faced a growing Islamist insurgency since July 2013 when the army ousted elected President Mohamed Morsi following mass protests and cracked down hard on his Muslim Brotherhood.

More than 500 people, mostly soldiers and police, have been killed in militant attacks, according to government statistics. 

The Muslim Brotherhood maintains it is a peaceful movement and has denied involvement in recent anti-state violence.