A New-York-based human rights group has called on the Syrian government to "immediately" release three women detained by state authorities. Human Rights Watch says the women have been detained since July 31. They are the wives of men held on charges of belonging to Islamic groups planning acts of violence. The group says in its Monday statement that so far authorities have not said why the women were detained. The women were identified as Yusra al-Hussein who is married to Jihad Diab, a detainee at the U.S. military base at Guantanamo Bay, HRW says.