Washington’s Blog 
Feb 2, 2011
In order to justify staying in power until elections are held in September, President Mubarak said on tv that the people had to choose between him and “chaos”.
As NBC notes :
President Hosni Mubarak announced late Tuesday that he would not run for another term in office, but whether Egyptians would allow him to remain in office until elections in the fall was uncertain.In a 5-minunte pre-recorded televised address to Egypt that was translated into English, Mubarak said it had never been his intention to run for re-election in September.
Mubarak said the protests that erupted Jan. 25 “force us to choose between stability and chaos.”
Soon after Mubarak’s speech was broadcast, clashes broke out between pro- and anti-Mubarak forces in Alexandria.
But the anti-Mubarak protesters did not take the bait.
The army broke up the clash and ensured peace by firing a couple of shots into the air  above everyone’s head.
As Al Jazeera blogs :
Clashes between anti-government and pro-Mubarak protesters in Alexandria. Shots are fired in the air.