ANKARA, June 1 (Xinhua) -- A big explosion rocked the eastern side of Turkey's largest city of Istanbul on Thursday, causing some casualties, local TV reported.
The blast occurred in a basement of a building in eastern Istanbul and some casualties were caused, the TV reported.
Footage showed that ambulances rushed to the scene. The cause of the explosion was not immediately clear.
Istanbul has witnessed deadly bomb attacks in the past and the Turkish authorities have blamed Kurdish rebel groups. Enditem
