"(The government) made every effort to get Egypt out of the narrow tunnel in terms of security, economic pressures and political confusion," Prime Minister Hazem el-Beblawi said in a live nationwide speech.

Beblawi, who was tasked by interim President Adly Mansour with running the government's affairs until the election, did not give a clear reason for the decision.

For Sisi to run for president, he would first need to quit as defense minister. "This (government resignation) was done as a step that was needed ahead of Sisi's announcement that he will run for president," an Egyptian official told Reuters.

He said the cabinet resigned en masse as Sisi did not want to appear to be acting alone.