Senior envoys from world and regional powers are to meet once again in Vienna in an effort to salvage stumbling efforts to halt Syria's bloody civil war.

Money worth some €100,000 (£72,000; $108,000) are found floating down the river in Vienna leading one passer-by to jump in and salvage the money.

A teenage Austrian girl who fled to Syria along with her friend is believed to be beaten to death after being caught trying to flee the IS stronghold of Raqqa.

The US is intensifying diplomatic efforts to end the "hell" of Syria's civil war even as it increases support for moderate rebels, US Secretary of State John Kerry has said.

Iranian Foreign Minister Mohammad Javad Zarif will attend multilateral talks on finding a political solution to the conflict in Syria in Vienna this week, a government spokeswoman has said.

Hundreds of migrants have resumed their journey through Austria to Germany after Hungary's decision on Friday to let them through.

The weather is sultry and tempers are fraying during tense negotiations over Iran's nuclear programme - one particularly testy exchange sparked a rash of social media messages and memes.

Sweden, Russia and Italy are among the favourites to win the 60th annual Eurovision Song Contest, which takes place in Vienna later.