Egypt Attacks Suspected Militants in the Sinai Peninsula
Israel claims to have killed militants fleeing across the border.
Egyptian military helicopters have fired missiles on suspected Islamist militants in Egypt's northern Sinai peninsula, security officials say.
Twenty people were reported killed in Touma village, while the Sheikh Zuwaid area to the west was also hit.
The strikes came after security checkpoints were allegedly attacked by gunmen in the town of al-Arish, leaving a number of people injured.
On Sunday, militants killed 16 Egyptian border guards in the area.