Security personnel and protesters clash following a gunbattle between the forces and rebels in Srinagar, on Sunday. Pic/AFP

In a major success for security forces, five Hizbul Mujahideen terrorists, including a top commander and a fresh recruit – a university professor – were killed in an encounter in Shopian district of Jammu and Kashmir (J&K) on Sunday, even as five civilians died during clashes between protesters and law enforcing agencies near the encounter site, the police said.