CAIRO (Reuters) - The Egyptian army said on Monday it would respond with the "utmost severity and firmness and force" if protesters tried to approach or break into its bases.

Thousands of Islamist supporters of deposed President Mohamed Mursi were demonstrating on Monday to demand his return to power.

At least 92 people were killed in the days after the army toppled Mr Mursi on July 3, although protests have been peaceful for the past week.