Police officials said the deadliest attack took place at night when a bomb exploded inside a cafe full of customers in southwestern Baghdad, killing six and wounding 16.
Hours earlier, three people were killed and five others wounded when a bomb went off in a commercial street in the Abu Ghraib area to the west of the capital.
Also, gunmen sprayed a security checkpoint with bullets in the city of Fallujah, a former al-Qaeda stronghold 65 kilometres from Baghdad. Two policemen were killed in the attack, said officials.
Violence has spiked in Iraq, with over 5,000 people killed, since a deadly April security crackdown on a Sunni protest camp in the northern town of Hawijah. Public places like cafes, restaurants, mosques and markets have been bombed by insurgents who want to undermine the Shiite led-government in Baghdad. Security forces have also been targeted.
