Yemen crisis - 'Dozens killed' as gunmen target rally

Yemen is the latest country to catch up with the wave of unrest and pro-democracy rallies. Several protestors had been killed when an unidentified gunmen opened fire on an anti-government rally in the Yemeni capital, Sanaa, killing at least 45 people and injuring 270.

The gunmen fired from rooftops overlooking the central square in what the opposition called a massacre.

President Ali Abdullah Saleh declared a national state of emergency, but denied his forces were behind the shooting.

US President Barack Obama has condemned the violence, urging Saleh to allow peaceful protests.