Life goes on in central Baghdad's Tahrir square a day after supporters of the Iraqi cleric Moqtada Sadr stormed the Iraqi parliament in the capital high-security Green Zone, in protest at a rival bloc's nomination for prime minister. The protests are the latest challenge for oil-rich Iraq, which remains mired in a political and a socioeconomic crisis despite elevated global energy prices. Sadr's bloc emerged from elections in October as the biggest parliamentary faction, but was still far short of a majority and, nine months on, deadlock persists over the establishment of a new government. IMAGES AND SOUNDBITES