Earlier this month , the United Nations High Commission for Human Rights estimated that government forces had killed at least 3,500 civilians . The commission says it interviewed witnesses , but was not allowed into Syria . Its report says Syrian security forces have committed `` gross violations of human rights '' including the use of torture and enforced disappearances to quell unrest in several provinces since March 2011.
The commission says it interviewed witnesses , but was not allowed into Syria . Its report says Syrian security forces have committed `` gross violations of human rights '' including the use of torture and enforced disappearances to quell unrest in several provinces since March 2011.