CAIRO (AFP) - A coalition opposed to ousted Egyptian president Mohamed Mursi called for mass protests on Friday to "protect the revolution" after supporters of the deposed Islamist leader took to the streets to defend him.

The National Salvation Front - a grouping of liberal and leftist groups- urged "all Egyptians to mobilise in Egypt's squares and support the June 30 revolution", which saw millions flood the streets to demand former president Mursi's resignation.

The military toppled Mr Mursi on Wednesday.