An unruly mob torched a bus after a woman was killed in a road accident in the city's Lalbagh area Monday. The victim was identified as Kawsari Begum (40) wife of Anwar Hossain of Jinjira in Keraniganj on the outskirts of the capital. Quoting witnesses, police said Kawsari along with her mother Shahinur Begum, 60, and nephew Anil was passing through Shahidnagar Embankment by a rickshaw at about 4:30 pm when a bus of 'Brothers Paribahan' hit their rickshaw. — UNB