article_snippet.sent: The London-based Syrian Observatory for Human Rights says ISIS and the al Qaeda-affiliated Al-Nusra Front took control of 90% of the camp in southern Damascus.
article_snippet.sent: The UNRWA estimates 18,000 civilians remain trapped in the camp that has been engulfed in fighting between the government and rebel forces since December 2012.
article_snippet.sent: ISIS controls the hospital so injured people have nowhere to go.
highlights_snippet.sent: ISIS and other rebel groups control most of the refugee camp, activists say .
  