explosion of unknown origin distract the Istanbul

Blast  In the historic centre of Sultanahmet district on Tuesday left 10 people dead, a government official said. Terrorist links are suspected, asking not to be named, after the explosion in the Sultanahmet district of Turkey's biggest city.  The blast came after a slew of deadly attacks across Turkey in past months that has left Turkey's largest city on edge. Can blamed on Islamic State (IS) jihadists, as were two other bloody assaults in the country's Kurdish-dominated southeast earlier in the year. But Turkey is also waging an all-out assault on the outlawed Kurdistan Workers' Party (PKK) which has staged dozens of deadly attacks against members of the security forces in the southeast of the country. Meanwhile the banned ultra-left Revolutionary People's Liberation Party-Front (DHKP-C) has also staged a string of usually small-scale attacks in Istanbul over the last months.