Twelve Turkish soldiers killed by gas exposure during cave search in Iraq
The incident took place during a mission to locate the remains of a Turkish soldier killed by the PKK. Turkey's pro-Kurdish DEM party will meet with Erdogan to discuss a peace process with the PKK.
An Iraqi federal police officer stands outside a tunnel, which was used by Islamic State terrorists, in Mosul, Iraq, February 4, 2017.(photo credit: REUTERS/MUHAMMAD HAMED)ByREUTERSUpdated: