ReutersQatar to invest $15 billion in Turkey; source says banks the focusReutersANKARA (Reuters) - Qatar pledged $15 billion of investment in Turkey on Wednesday. Turkish President Tayyip Erdogan meets with Emir of Qatar Sheikh Tamim bin Hamad al-Thani in Ankara, Turkey August 15, 2018. Kayhan Ozer/Presidential ...The Latest: Qatar Pledges Investment in Turkey Amid CrisisU.S.