(CNN) -- Streets in major Egyptian cities appeared calm Saturday, a day after clashes erupted between security forces and opposition supporters, state media and eyewitnesses said.
The clashes with the country's biggest opposition bloc come ahead of November 28 parliamentary elections.
Police used tear gas and rubber bullets, and arrested tens of Muslim Brotherhood supporters, local media reported.
There was no official confirmation on how many people were arrested, but the Muslim Brotherhood website put the number at more than 270.
In Alexandria, 33 people were injured as demonstrators threw rocks at security forces trying to disperse a crowd from one neighborhood, eye witnesses said.
Various opposition groups -- including the banned Muslim Brotherhood group, whose candidates are forced to run as independents -- have accused the ruling National Democratic Party (NDP) of using its power to suppress voices critical of President Mubarak's almost-30-year rule.
The ruling party has dismissed the accusations.
Opposition calls for internationalal election monitors are unnecessary, said the ruling party general secretary, Safwat al-Shareef.
CNN
