A car bomb exploded in central Ramadi late May 2, following several days of the most violent clashes to date in the city's southern sectors.
Some residential districts have been hit by both artillery and aerial bombardment.
In Fallujah, a source at the General Hospital said that two civilians were killed and seven were wounded as a result of indiscriminate shelling hitting a number of the city's residential districts.
Meanwhile, flooding continues to engulf parts of Fallujah due to insurgents' closing the gates of a downstream dam on the Euphrates river.
The flooding has also caused widespread damage of agricultural lands.