Opposition movement calls for one "million people demonstration" on Tuesday in a bid to topple president Hosni Mubarak.

Al Jazeera

Last Modified: 31 Jan 2011 11:21 GMT

Egyptian protesters have called for a massive demonstration on Tuesday in a bid to force out president Hosni Mubarak from power.

The so-called April 6 Movement said it plans to have more than a million people on the streets of the capital Cairo, as anti-government sentiment reaches a fever pitch.

Several hundred demonstrators remained camped out in Tahrir Square in central Cairo overnight, defying a curfew that has been extended by the army.

Thousands were back on the square by mid-day on Monday, chanting anti-government slogans. This as heavy military presence was seen in many parts of the capital.

One of Al Jazeera's correspondents said the military's attempts to block access to the square on Monday by closing roads was not working as more people were arriving in a steady stream.

"Protesters say they'll stay in this square for as long as Mubarak stays in power," she said.

Protesters seem unfazed by Mubarak's pledge to institute economic and political reforms. Our correspondent said people feel that such pledges "are too little, too late".