Huthi rebels commemorate Ashura in Sanaa Supporters of Yemen's Shiite Huthi rebels wave flags and shout slogans as they march in Sanaa during a rally commemorating the fourth anniversary of their takeover of the capital and the day of Ashura. The day of Ashura is commemorated by Shiite Muslims worldwide and marks the peak of mourning rituals during the Islamic month of Muharram for the 7th century killing of Imam Hussein, the grandson of Prophet Mohammed, in the Battle of Karbala in 680 AD. IMAGES AND SOUNDBITES