Two protestors and one policeman have died during demonstrations staged across Egypt demanding that President Hosni Mubarak step down.
Two protestors died in the port city of Suez in clashes between police and demonstrators.
A policeman died from his wounds in Cairo, where thousands had gathered in central Cairo's Tahrir square.
In Cairo, thousands of protesters carrying Egyptian flags chanted in unison: 'The people want the ouster of the regime.'
Despite almost 30,000 police being deployed in the centre of the capital, demonstrators broke police barriers to march towards the square, where police fired tear gas in an attempt to disperse them.
More than 60 people in Suez suffered the effects of inhaling tear gas.
Tear gas was fired in several other locations, including the northern city of Alexandria.
Police in Cairo also sprayed water cannons as protestors threw stones in a road that leads to parliament.
Protestors across the country chanted 'Down with Mubarak' and held signs that read 'Tunisia is the solution.'
In the port city of Ismailiya, over 1,000 chanted anti-government slogans and warned other Arab leaders they would meet the same fate as former Tunisian leader Zine El Abidine Ben Ali.
Mr Ben Ali was ousted last week by a popular uprising after 23 years in power.
The Egyptian interior ministry has warned that it would deal 'firmly' with all those who behave illegally.
'The security is able to deal with any threat to the safety of its people, and will not take lightly any damage to property or breaches of the law,' Habib al-Adly warned in an interview with the state-owned Al-Ahram daily.
Amnesty International urged the authorities not to crack down on the protests.