Millions of Egyptians are now thought to be on the streets across the country - calling for the resignation of President Morsi.

In Cairo, stones and petrol bombs have been thrown at the headquarters of the ruling Muslim Brotherhood.

There are also reports that one person has been killed in a city south of the capital.

Crowds have swelled since the sun went down bringing more tolerable summer temperatures.

Sky's Foreign Affairs Editor Tim Marshall is in Tahrir Square in Cairo - and says the Army's showing its strength: