Yemen gripped by protests

Yemeni riot police charge towards anti-government demonstrators Photograph: Muhammed Muheisen/AP Yemeni anti-government demonstrators react during a demonstration Photograph: Muhammed Muheisen/AP Anti-government protesters attend Friday prayers in the southern Yemeni city of Taiz Photograph: Reuters Anti-government protesters take part in a demonstration in the southern Yemeni city of Taiz Photograph: Reuters Yemeni anti-government protesters chant slogans Photograph: Hani Mohammed/AP Yemeni riot police charge towards anti-government demonstrators Photograph: Muhammed Muheisen/AP A medic attends to an anti-government protester who was injured during a demonstration in the southern Yemeni city of Taiz Photograph: Reuters