Saturday’s election has assumed unprecedented national significance, with ethnic Tamil leaders saying a victory would be a mandate to press for self-rule in the South Asian island nation’s Tamil-majority north and east.

President Mahinda Rajapaksa’s ruling party hopes a victory for itself would blunt calls for an international war crimes investigation over incidents in the final months of the 25-year civil war, which ended in May 2009.

Armed soldiers stood guard Saturday throughout Jaffna, the capital of Northern Province, and most shops were shut.