NEW : The United Nations and The United Nations in Iraq condemn the attacks . More than 200 people are injured . Official : More coordinated attacks have been seen since Baghdad troops withdrew . Iraq hosts an Kurdish summit on Thursday .
NEW : The United Nations and U.S. Embassy in Baghdad condemn the attacks . More than 200 people are injured . Official : More coordinated attacks have been seen since U.S. troops withdrew . Iraq hosts an Arab summit on March 29 .