CAIRO, Jan 29 (Aswat Masriya) Egypt's army killed two "Islamist radicals" and arrested 40 others on Wednesday during a crackdown in North Sinai, security sources said.

Security forces have launched a military campaign to liquidate militants in the lawless peninsula following the increase of attacks on army and police forces since the ouster of Islamist President Mohamed Mursi in July.

These attacks have killed 175 security personnel and 185 from the militants.