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We are in the midst of the WORLD'S WORST refugee crisis in history. A crisis that brings with it overwhelming numbers, huge challenges for countries and communities affected, untold misery -- and hope.

A day after a US Navy fighter jet shot down a Syrian warplane, Russia says it has stopped using a key communication channel set up to avoid conflict between US and Russian forces in Syria.

British prosecutors have filed criminal charges against Barclays and four former bank executives over investments from Qatar that helped save the bank during the financial crisis.

The death of an American college student who was held prisoner by North Korea has sent a chill through companies that organize tours to the secretive country.

Two journalists have died following a blast in the Iraqi city of Mosul.

Otto Warmbier went to North Korea as a bright-eyed 21-year-old student looking for adventure.

Tourists strolling along Paris' famous Champs-Elysees boulevard watched in horror as a car rammed into a police van Monday afternoon -- and some witnessed the car burst into flames as police grabbed the man inside and put him on the ground.

Residents who live near Grenfell Tower in London have expressed both heartbreak and outrage after visitors were spotted taking selfies at the site of last week's deadly fire.

News that a US Navy fighter jet on Sunday shot down a Syrian warplane is a dramatic escalation in a war the United States had not intended to fight.

The attack early on Monday morning near a mosque in North London targeting Muslims who were celebrating the holy month of Ramadan reminds us that terrorism comes in many shapes and forms.

A huge fire engulfed a 27-story apartment block in West London on Wednesday, July 14. Dozens of people are dead or presumed dead.

London Mayor Sadiq Khan responds to a vehicle attack on worshipers at a London mosque, promising increased police protection for upcoming Muslim holidays.

As Brexit negotiations finally get underway, there's quite a bit of confusion. Despite British PM Theresa May's insistence that "Brexit means Brexit," for many it isn't clear at all what it actually means. Nevertheless, reality is imposing itself here, as it becomes apparent that there aren't very many ways to implement Brexit.

In a statement released by the Russian Ministry of Defense, Russia says it will now treat US-led aircraft in Syria as "targets" after the US shot down a Syrian jet.

Twenty-four people were killed in Portugal in what officials are calling the country's 'greatest wildfire tragedy of recent years'.

A Syrian warplane was shot down over Raqqa by the United States-led coalition after a Syrian regime SU-22 dropped bombs near Syrian Democratic Force, or SDF, fighters, according to a statement by the US-led coalition.

Seven missing sailors from the USS Fitzgerald were found dead in flooded berthing compartments following the warship's collision with a merchant vessel, a US military official said.

Shots have been fired at a resort near Mali's capital Bamako, according to a tweet from the UN Mission to the country.

Iran's Revolutionary Guard announced on Sunday that it launched several missiles into Syria, targeting ISIS fighters in retaliation for the attacks in Tehran on June 7th.

Iran's military announced it launched several missiles into Syria, targeting Islamic State fighters in retaliation for the attacks in Tehran. CNN's Lynda Kinkade covers the developments.