Car bombs and a suicide blast hit Shi'ite districts of Iraq's capital Baghdad killing at least 50 people.
Bombs exploded near a busy Baghdad market and a suicide bomber driving a truck attacked a police base just south of the capital, police and hospital sources told Reuters.
Al Radi, a taxi driver caught in one of the blasts in Baghdad's Sadr City, said: "I was driving my taxi and suddenly I felt my car rocked. Smoke was all around. I saw two bodies on the ground. People were running and shouting everywhere."
Another 160 people were wounded in the attacks, hospital officials said.
On the eve of the tenth anniversary of the 2003 invasion, Iraq is still struggling with insurgents, deadly sectarian feuds and corruption.
Ali Hamdani reflects on Iraq war during which he risked his live on a daily basis to show the world "what was happening in my country".
Military blogs really came to prominence during the Iraq War as soldiers took to the internet to share their experience of the frontline.