Kathmandu, 6 October: Eight persons died when a bus bound to Birgunj from Narayangadh plunged into a river in Simra at 11 am today. The passenger bus with Ba 06-001-Kha 0110 was plunged into the river on the highway. Around 25 others were injured, according to the District Police Office, Bara. Injured people are being treated at Hetauda Hospital and Alpine Hospital.