text: Washington to curb Tamil support in U.S. - Sri Lanka . COLOMBO 1996-08-23 Sri Lanka said on Friday the United States had promised to stamp out any illegal activities on U.S. soil directed against the island 's government . The Sri Lankan foreign ministry said in a statement : " The United States government sympathised with the current predicament Sri Lanka was facing . " The statement said the U.S. government " would do all within its prevailing legal framework to prevent the use of American soil to perpetrate violence against the democratic government of Sri Lanka " . It said the U.S. State Department 's coordinator for counter terrorism , Philip Wilcox , had expressed Washington 's support for the government when he visited Colombo this week . Colombo has said it believes Tamil rebels , fighting a 13-year war for independence against the government , finance their military activity through funds extorted from expatriate Sri Lankans in western countries such as the United States . U.S. embassy officials in Colombo were not immediately available to comment on the report . Colombo estimates more than 50,000 people have been killed in the war between government forces and the Liberation Tigers of Tamil Eelam rebels in the island 's north and east .