The Greater Metropolitan Municipality of Istanbul has taken full responsibility for a tunnel collapse in the city’s Aksaray district last month that killed four people and levelled four buildings, saying that it had not taken the correct proceedings. It has also said that the client had pushed the project without a detailed design or site investigation. The contractor JV Amo, consisting of local companies Yuksel/Reha Basyazicioglu, had been pulled off the 7km job two weeks before the collapse following discovery of ancient artifacts along the route.
