Twelve suspected members of the Ansar Bayt al-Maqdis organization were killed in a targeted military operation in North Sinai on Monday.
According to a security source, Apache helicopters were dispatched to the area, bombing the four-wheel drive vehicle used by the suspects.
The security source confirmed that weapons were found on the site.
Egypt's armed forces have killed at least 115 suspected militants in North Sinai in April alone, the army spokesman announced on Saturday.
Edited translation from Al-Masry Al-Youm