At least 11 people were killed and 44 others injured in a bus accident in Turkey's northwestern Eskisehir province on Saturday.The accident took place early on Saturday when the bus carrying a tour group from capital Ankara to northwestern Bursa province veered off the road and crashed into a copse of trees, Xinhua news agency reported.The driver lost control of the vehicle and crashed against trees along the roadside.Eskisehir Governor Ozdemir Cakacak told media that the driver of the bus has been detained.