EL-ARISH, Egypt — Egyptian state news agency MENA reports that 85 people have been killed in a bombing and shooting attack on a mosque in the volatile northern Sinai Peninsula, in what appeared to be the latest attack by the area's local Islamic State affiliate.

Citing official sources, MENA said 80 people were also wounded in the attack on the al-Rawdah mosque in the town of Bir al-Abd, 25 miles from the North Sinai provincial capital of El-Arish.

They said men in four off-road vehicles opened fire on worshippers inside the mosque during the sermon.

Victims were being transferred to local hospitals, they added, speaking on condition of anonymity because they weren't authorized to brief reporters.