premise: In addition to the main branch targeted in the kidnapping, the Iraqi Red Crescent has closed another 40 subsidiary offices in Baghdad, affecting more than 600 staff, a large proportion of them security guards, Abdallah said.
  Thirteen of the 30 men snatched in Sunday's brazen raid by gunmen dressed in police uniforms have been released, including three guards from the nearby Dutch embassy and 10 Red Crescent guards and drivers, Abdallah added.
  But 17 people, including relief and health workers -- a mixed group of Shiite and Sunni staff -- are still missing following the second mass abduction to terrorise Baghdad in less than a week.
  The International Committee of the Red Cross, part of the same movement, has called for the immediate and unconditional release of the hostages, and condemned the kidnapping as a breach of international humanitarian law.
  Fully aware of the ugly sectarian tensions threatening to rip Iraq apart, Abdallah said he ordered his staff not to reveal their family names while at work, in order not to disclose their religious or ethnic background.
   What happened to some of the men who were snatched in the raid?
hypothesis: have been released