A U.N. panel says more than 2,000 Syrians have drowned in the Mediterranean while trying to reach Europe since 2011, and says there's no end in sight to Syria's civil war.

The U.N. Human Rights Council report says "the global failure to protect Syrian refugees is now translating into a crisis in southern Europe" — amid an increased flow in recent months.

Overall, the 24-page report released Thursday focuses on events from January to June and sheds little new light on the 4½-year conflict.

It highlights abuses by many combatants including President Bashar Assad forces, the Islamic State group and al-Qaida-backed Nusra Front. It says Islamic State has adopted new tactics like hit-and-run attacks and suicide car-bombings following battlefield losses to Kurdish fighters backed by U.S.-led coalition airpower.