2014年CRI 美国将在伊拉克进行更多空袭 习近平主席今日出访蒙古国（在线收听）

The United States has launched a new barrage of airstrikes against Islamic State extremists and is weighing sending more troops to Iraq as world leaders condemn the killing of American journalist James Foley by the militants.

It comes after Islamic State released a video purported to show the beheading of Foley with threats to kill another American in retaliation against the recent U.S. intervention in Iraq.

UN Secretary-General Ban Ki-moon is calling the beheading of the American journalist "an abominable crime."

US President Barack Obama is comparing the IS to a "cancer", saying its ideology is "bankrupt".

The 40-year-old journalist has reported across the Middle East, working for US publication GlobalPost and other media outlets including French news agency AFP.

Chinese President Xi Jinping is embarking on a two-day visit to Mongolia today.

As part of his time there, a series of economic agreements are expected to be signed.

Trade between China and Mongolia currently sits at around 6-billion US dollars a year.

New deals connected to mining and transportation infrastructure are expected.