(KUNA) -- At least eight Liberation Tigers of Tamil Eelam (LTTE) rebels have been killed in fresh clashes with security forces in Sri Lanka's northern region. As many as four LTTE men in an attack by the Sri Lankan Army at Omanthai in Vavuniya in Northern Sri Lanka early today, according to a statement from the Media Centre for National Security, news agency Press Trust of India reported. In another incident, four LTTE rebels were killed by the security forces last night at Valiyankulam also in Vavuniya, the Sri Lankan Defence Ministry said today.