A wave of bombings tore through Baghdad on Tuesday morning,killing at least 65 people in a spasm of violence on the eve of the 10th anniversary of the US-led invasion. The attacks show how dangerous and unstable Iraq remains a decade after the war - a country where sectarian violence can explode at any time. And though attacks have ebbed since the peak of the insurgency in 2006 and 2007,tensions simmer and militants remain a potent threat to Iraqs security forces. Tuesdays attacks were mostly by car bombs and targeted mainly Shia areas,small restaurants,day laborers and bus stops in the Iraqi capital and nearby towns over a span of more than two hours. Along with 56 killed,over 200 people were wounded in the attacks,officials said. The bombings came 10 years to the day US announced the start of the invasion on March 19,2003 though by that time it was already the following morning in Iraq. Also on Tuesday,Iraqs Cabinet decided to postpone the forthcoming provincial elections in two provinces dominated by the countrys minority Sunnis for up to six months. The decision followed requests from the political blocs in the provinces,according to the prime ministers spokesman,Ali al-Moussawi. Two provinces affected,Anbar and Ninevah,have been at the centre of the nearly three months-long protests against Iraqs Shia-led government. Provincial elections were scheduled for April 20. One of the deadliest of Tuesdays attacks struck close to one of the main gates to the heavily-fortified Green Zone,which houses major government offices and the embassies of several countries,including the US and Britain. There was no immediate claim of responsibility for the blasts,but the attacks bore hallmarks of al-Qaeda in Iraq.