The Sri Lankan military says several battles have broken out between troops and rebels in the nation's northern war zone. A military statement Monday says the two warring sides fought pitched battles along the front lines in the Kilinochchi, Jaffna and Mullaittivu districts throughout the day Sunday. The military says it has recovered the bodies of three Tamil Tiger fighters. Rebel spokesmen could not be reached for comment. The two sides have been fighting for more than a quarter century over the rebels' demand for a separate state for the ethnic Tamil minority.