Canada is urging Iraqi authorities to bring to justice those responsible for a wave of bombings that killed nearly 80 people across the country.

And the U.S. is offering a $10 million reward for information leading to the capture or death of Abu Bakr al-Baghdadi, the head of al-Qaida in Iraq, the group it believes carried out the attacks.

Bombs tore through markets, shopping streets and parks Saturday night as Iraqi families were out celebrating the end of the Muslim fasting month of Ramadan.

Foreign Affairs Minister John Baird said Canada "unequivocally condemns the abhorrent attacks" and said "our thoughts go out to the families and friends of the victims of this senseless violence."

In a statement, a spokeswoman from the U.S. Department of State said "the terrorists who committed these acts are enemies of Islam and a shared enemy of the United States, Iraq, and the international community."

This has been one of the deadliest Ramadan months in years, with bomb attacks killing scores of people. The latest bombings were similar to attacks in Baghdad last Tuesday in which 50 died.

-- with files from Reuters