In March 1985, the announcement of the increase in the prices of basic necessities, at the request of the IMF with which the regime was negotiating, triggered the first demonstrations. On April 2, eight unions called for mobilization and a "general political strike until the abolition of the current regime". On the 3rd, massive demonstrations shook Khartoum, but also the country's main cities; the strike paralysed institutions and the economy. On April 6, 1985, a group of military officers, led by Lieutenant General Abd ar Rahman Siwar adh Dhahab, overthrew Nimeiri, who took refuge in Egypt. Three days later, Dhahab authorized the creation of a fifteen-man Transitional Military Council (TMC) to rule Sudan.