Dili, May 20 (AP): Nobel Peace Prize winner Jose Ramos-Horta was sworn in as East Timor's President on Sunday, vowing to unite the desperately poor nation more than a year after violence brought down its young government.

But hours after he took the oath of office, a clash broke out in the capital, leaving at least one young man dead and several others wounded, police and a hospital official said. United Nations peacekeepers were deployed to restore order.

``I swear in the name of God and the people ... to consolidate freedom and national unity with all the energy I have,'' Ramos-Horta said at a swearing in ceremony.