On 25 January 2011, widespread protests began against Mubarak's government. On 11 February 2011, Mubarak resigned and fled Cairo. Jubilant celebrations broke out in Cairo's Tahrir Square at the news. The Egyptian military then assumed the power to govern. Mohamed Hussein Tantawi, chairman of the Supreme Council of the Armed Forces, became the ''de facto'' interim head of state. On 13 February 2011, the military dissolved the parliament and suspended the constitution.