Opposition activists in Egypt are preparing for a strike in protest against rising food prices and the political situation in the country.
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Arab TV broadcasters face curbs ... of people were detained following a similar protest last month.
A coalition of groups and individuals has organised the general strike, largely through social networking site Facebook.
The Muslim Brotherhood, Egypt's largest opposition movement, has urged its members to support the protest.
Another backer is Kefaya, a pro-democracy organisation.
Organisers have called on Egyptians to stay at home, but if they do go out to wear black as a symbol of mourning for the country's future.
Soaring prices
The BBC's Ian Pannell in Cairo says the strike reflects growing unease over rising food prices and the lack of meaningful political reform in the country.
Food costs have risen sharply in Egypt in recent months, in line with rising global commodity prices.
Some basic goods have almost doubled, provoking widespread unease and anger.
This is a worrying development for a government that maintains public order with a strong hand, our correspondent says.
The day of action coincides with the 80th birthday of President Hosni Mubarak, who has been in power since 1981.
President Mubarak has ordered the army to help with bread production and recently announced a public sector pay increase of 30%.
But the authorities have also warned they will not tolerate dissent on the streets.
There were two days of clashes with riot police after the security services prevented textile workers from carrying out industrial action during a similar day of protests last month.
Hundreds of people were arrested and many are still in police custody.
(BBC)
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