Vijayawada: 13 passengers have suffered minor injuries when a private travel bus hit a divider on the national highway and overturned near Thelaprolu of Gannavaram in Ungutur mandal of Krishna district in the early hours on Tuesday. When the bus reached Thelaprolu at about 2:30 a.m., the driver lost control allegedly due to high speed and drowsiness and hit a divider. The bus went for some distance and again hit the divider and overturned. The driver of a lorry following the bus applied brakes but ended up impacting the overturned bus. National Highway Authority of India authorities drew flak for being late in arranging cranes to lift the overturned bus and clear the road for vehicular traffic.