The U.N. mission said Iraq still suffers from attacks from al-Qaida in Iraq, the Islamic State of Iraq and other terrorist groups.
A series of damning reports were published last month on the 10th anniversary of the U.S.-led invasion. Tuesday marks the 10th anniversary of the fall of the Baathist regime of Saddam Hussein.
The Islamic State of Iraq took credit for a string of attacks in Baghdad that left roughly 60 people dead on the 10th anniversary of the U.S. declaration of war on Iraq. At least 200 people were wounded.
UNAMI Chief Human Rights Officer Francesco Motta said civilians and national security forces alike were suffering under a poor security situation in Iraq.
"The United Nations deplores the continuing loss of civilian life resulting from acts of terrorism and armed conflict," he said in a statement.
UNAMI said at least 229 civilians were killed and 853 were wounded by terrorism and armed conflict in Iraq last month. Another 227 members of the Iraqi security forces were killed and 300 were wounded during similar attacks.
Iraqi next week holds provincial council elections. Elections in some provinces were postponed briefly because of security concerns.
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