The tour bus, which was en route to the Turkish capital Ankara from the northwestern province of Canakkale, slammed into a barrier in Inegol district of Bursa province and overturned.
Speaking to Anadolu, Bursa Governor Yakup Canpolat said the bus was carrying secondary school children and was part of a six-bus convoy returning from a trip in Canakkale.
Canpolat said there were a total of 47 passengers in the bus, including three teachers.
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