DEIR EZ-ZOR, Syria  Nine areas in eastern Syria saw fighting Wednesday between Arab tribes and the US-backed terror group PKK/YPG, in an escalation of tensions in the province of Deir ez-Zor, sources told Anadolu.  Arab tribes clashed with PKK/YPG terrorists in the eastern and southeastern rural areas of Deir ez-Zor in the morning. The tribes attacked road checkpoints and the headquarters of the PKK/YPG in the villages of Al-Busayrah, Ibrahiyyah, Alharija, Tayyaneh, Abu Hamam, Gazanic,