Egypt soldiers wounded in Sinai bombings

At least seven Egyptian soldiers have been wounded in a bombing attack on the Sinai border.

At least seven Egyptian soldiers have been wounded in a bombing attack targeting their armoured vehicles in the Sinai border town of Rafah.

The explosions occurred during a military operation on Friday in the town bordering the Palestinian Gaza Strip, witnesses said.

The military regularly conducts operations there to destroy smuggling tunnels to Gaza, amid a wider campaign to quell a militant Islamist insurgency in the northern Sinai peninsula.

The attack came a day after a suicide bomber killed four soldiers when he rammed his bomb-laden car into a checkpoint near the northern Sinai town of El-Arish.

Attacks on the army and police have increased since the army's July 3 ouster of Islamist president Mohamed Morsi and a subsequent crackdown on his supporters and members of his Muslim Brotherhood.

Militants have launched a series of brazen attacks this week, after at least 57 people were killed in clashes between security forces and Morsi supporters on Sunday, most of them in Cairo.