Gökhan Şahin

As the color of the Riva Stream in Istanbul has turned black again and the pungent odor rising following the formation of an oil slick over its surface, the Environment, Urbanization and Climate Change Ministry has started an investigation by taking samples from the water.

Turkey has begun building a "security wall" along part of its border with Iran, regional officials said on Aug. 8, in a move aimed at stopping illegal passages, Hurriyet writes.

Turkey has begun building a "security wall" along part of its border with Iran, regional officials said on Aug. 8, in a move aimed at stopping illegal passages. 

The wall is being built by the Housing Development Administration of Turkey (TOKİ) upon the request of the Defense Ministry.