Updated

Al-Qaida leader Ayman al-Zawahri has given his blessing to attacks of Egyptian jihadis on the police and army, but said they should avoid harming civilians.

In an audio interview with al-Qaida media arm as-Sahab posted early Saturday on a militant website, al-Zawahri advised jihadis that any armed confrontation should be popularly supported and that victory cannot be achieved without this support.

Al-Zawahri said the jihadis should choose their targets very carefully and explain the aims of each operation to the people.

He also harshly criticized Egypt's ultraconservative Islamist al-Nour Party, accusing it of deceit and deception by supporting the military backed interim government and secular constitution, which he considers void.