Police in France and Belgium arrested eight suspected militant Islamists on Tuesday in dawn raids three weeks after jihadists killed 17 people in Paris.
U.S. President Barack Obama and new Saudi Arabia King Salman are expected to discuss shared concerns about the turmoil in Yemen and the fight against Islamic State militants during their first formal meeting in Riyadh on Tuesday, the White House said.
Japan has vowed to work with Jordan to secure the release of a Japanese journalist held by Islamic State militants after the killing last week of another Japanese captive, but it reiterated that it would not give in to terrorism.
President Bashar al-Assad has said U.S.-led air strikes against Islamic State militants in Syria should be subject to an agreement with Damascus and Syrian troops should be involved on the ground.
A group calling itself "Official Cyber Caliphate" said it hacked on Monday the official website of national carrier Malaysia Airlines (MAS), but the airline said its data servers remained intact and passenger bookings were not affected.
Japan Prime Minister Shinzo Abe on Sunday called for the immediate release of a Japanese journalist held by Islamic State after a video surfaced claiming that a fellow Japanese captive had been executed.
Saudi Arabia's Interior Minister, Prince Mohammed bin Nayef, a close friend of the United States and a scourge of Islamist militants, will be the country's first king from the third generation of its ruling dynasty.
Spanish police arrested four people on Saturday in its North African enclave of Ceuta suspected of belonging to a militant Islamist network, the interior ministry said.
France's top court ruled on Friday it was possible to strip the nationality of a Franco-Moroccan man naturalized as French who was convicted on terrorism charges, paving the way for more dual nationality jihadists to lose their passports.
Japan said on Friday it was still trying to secure the release of two Japanese hostages held by Islamic State militants after a deadline to pay ransom for their release passed.
A 30-year old Chechen who Austrian authorities accuse of fighting with Islamic State jihadists in Syria in 2013 and sending them money pleaded not guilty when the country's first such trial opened on Thursday.
Iran said on Tuesday it was ready for "straight talks" with Saudi Arabia over contentious issues that have kept the rival Gulf powers at loggerheads for more than three decades.
Japanese Prime Minister Shinzo Abe on Tuesday condemned as "unacceptable" the threat to the lives of two Japanese purportedly taken captive by Islamic State militants, and said the international community should not give in to terrorism.
The militant Islamic State group, which holds territory in Iraq and Syria, issued a video online on Tuesday purporting to show two Japanese captives and demanding $200 million from the Japanese government to save their lives.
An Israeli helicopter strike in Syria killed a commander from Lebanon's Hezbollah and the son of the group's late military leader Imad Moughniyah, Hezbollah said, in a major blow that could lead to reprisal attacks.
Japanese Prime Minister Shinzo Abe warned on Saturday that the world would suffer an "immeasurable loss" if terrorism spreads in the Middle East and pledged about $200 million in non-military assistance for countries battling Islamic State.
Belgian police were questioning 13 suspects on Friday detained during raids against an Islamist group they feared planned to attack police and two other people were held in France, state prosecutors said.
France's Charles de Gaulle aircraft carrier is ready to be used to support military operations against Islamic State in Iraq, French President Francois Hollande told military personnel aboard the vessel on Wednesday.
Republican and Democratic U.S. lawmakers will press ahead with a plan for more sanctions on Iran, the chairman of the Senate Foreign Relations Committee said on Wednesday, despite White House warnings that they risked derailing nuclear talks.
The suspected female accomplice of Islamist militants behind attacks in Paris was in Turkey five days before the killings and crossed into Syria on Jan. 8, Turkish officials said on Monday.
The Twitter and YouTube accounts for the U.S. military command that oversees operations in the Middle East were hacked on Monday by people claiming to be sympathetic toward the Islamic State militant group being targeted in American bombing raids.
