More than 30 people have been killed in Iraq in one of the bloodiest days since the start of the year.The deadliest attack was near the US base Camp Victory near Baghdad airport, where 14 people died in a double suicide car bomb. Another eight civilians, three police officers and three security guards were killed in half a dozen seperate bombings that ripped through the capital, targeting mainly police patrols and convoys. Britain has also confirmed two of its soldiers died in a roadside bomb attack on a convoy in the southern city of Basra on Saturday night, bringing to 111 the number of British troops killed in Iraq since the 2003 invasion. On the political front, prime minister-designate Nuri al-Maliki is struggling to meet a deadline to form a national unity government by next week. Disputes centre on the key posts of interior, defence and oil. One source said Maliki would fill in himself the ministries of interior and defence if no agreement was reached before May 21.