New UN report says armed group has performed public executions and that Syria has used chlorine gas in combat.

The United Nations has accused the Islamic State group of committing war crimes including amputations and public executions, sometimes in the presence of children.

The world body also said it believed the Syrian government had used chlorine gas in combating its enemies.

The Sunni fighters, who are bringing weapons from Iraq, have changed the power balance in Syria, consolidating control over large areas and establishing order by imposing Islamic law, the UN said in its latest report, released on Wednesday.

(Link)