Week in Pictures: November 21-27, 2011

The week’s best photographs from around the world

<p>A protester throws a tear gas canister, which had earlier been thrown by riot police, near Tahrir Square in Cairo November 20, 2011. Protesters demanding an end to army rule and angered by rough police tactics battled with police on Sunday, presenting Egypt&#8217;s ruling generals with their biggest security challenge yet, a week before parliamentary elections. Two people were killed and hundreds wounded in clashes on Saturday night reminiscent of some of the worst violence during the 18-day uprising that toppled Hosni Mubarak in February. (Stringer/Reuters)</p>

A protester throws a tear gas canister, which had earlier been thrown by riot police, near Tahrir Square in Cairo November 20, 2011. Protesters demanding an end to army rule and angered by rough police tactics battled with police on Sunday, presenting Egypt’s ruling generals with their biggest security challenge yet, a week before parliamentary elections. Two people were killed and hundreds wounded in clashes on Saturday night reminiscent of some of the worst violence during the 18-day uprising that toppled Hosni Mubarak in February. (Stringer/Reuters)

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