A/HRC/21/32 Government security forces, as well as Government and civilian infrastructure, using small arms, improvised explosive devices and rocket-propelled grenades. The continuous fighting between the parties, the use of heavy weapons by the Government and the increase in the use of improvised explosive devises resulted in heavy civilian casualties and mass displacement of civilians inside and outside the country. During the period under review, reports were received of numerous human rights violations committed by Government forces, which may amount to crimes against humanity and, possibly, war crimes. There were also increasing reports that antiGovernment armed groups were committing serious human rights violations. It should be noted that, throughout the period under review, the six-point plan proposed by the Joint Special Envoy remained central to the efforts aimed at achieving a peaceful resolution to the conflict in the Syrian Arab Republic. 2