Eight displaced Syrians, including four children, were killed by Turkish border guards while trying to flee their war-torn country Sunday morning, the Syrian Observatory for Human Rights said. The National Coalition umbrella opposition group - based in Istanbul and backed by Turkey - gave a higher toll of 11 killed and condemned the "terrible tragedy." Turkey has repeatedly denied accusations of its security forces firing on Syrians trying to cross the frontier, which has been closed for several months. But the Observatory has recorded numerous incidents this year, and said Sunday's toll was among the highest. The Britain-based Observatory said...