A United Nations Security Council committee is considering requests by the United States and France to blacklist more than a dozen foreign extremist fighters, fundraisers and recruiters linked to Islamist militant groups in Syria, Iraq, Afghanistan, Tunisia and Yemen.
World leaders gather in New York this week to tackle a host of crises: the violence Islamic State militants are wreaking in Iraq and Syria, the exponential spread of the deadly Ebola virus in Africa and deadlocked negotiations on Iran's nuclear program.
Kurdish militants in Turkey have issued a new call to arms to defend a border town in northern Syria from advancing Islamic State fighters, and the Turkish authorities and United Nations prepared on Sunday for a surge in refugees.
Iran is ready to work with the United States and its allies to stop Islamic State militants, but would like to see more flexibility on Iran's uranium enrichment program, senior Iranian officials told Reuters.
About 60,000 Syrian Kurds fled into Turkey in the space of 24 hours, a deputy prime minister said on Saturday, as Islamic State militants seized dozens of villages close to the border.
Intelligence showed that militants connected with Islamic State were planning to behead a member of the public in Australia, Prime Minister Tony Abbott said on Thursday after hundreds of police raided homes in a sweeping counter-terrorism operation.
The U.S. House of Representatives began debating legislation on Tuesday to authorize President Barack Obama's plan to arm and train Syrian rebels to fight Islamic State militants, and lawmakers said the measure would likely pass Congress by the end of this week despite some members' reservations.
The most senior U.S. military officer raised the possibility on Tuesday that American troops might need to take on a larger role in Iraq's ground war against Islamic State militants, but the White House stressed they would not deploy on a combat mission.
The Syrian military's air defenses would face retaliation if Syria attempted to respond to U.S. air strikes that are expected against Islamic State targets in Syria, senior U.S. officials said on Monday.
The Philippines is investigating the involvement of Filipino Islamists in the three-year civil war in Syria after two locals were reported killed fighting for Islamic State militant group, an intelligence official said on Saturday.
U.S. Secretary of State John Kerry said on Friday it was "not appropriate" for Iran to join talks on confronting Islamic State militants, as he appeared to play down how fast countries can commit to force or other steps in an emerging coalition.
U.N. Secretary-General Ban Ki-moon urged President Bashar al-Assad to seek a political solution to Syria's war, saying this would help international efforts against Islamic State militants in Syria and Iraq, al-Hayat newspaper reported on Wednesday.
France will host an international conference on Iraq's security crisis on Sept. 15, French President Hollande's office said on Tuesday, as a multi-national coalition tries to marshal an offensive against Islamic State insurgents.
Bosnian police detained 16 people on Wednesday on charges of financing terrorist activities, recruiting and fighting on the side of radical groups in Syria and Iraq, authorities said.
The Islamic State militant group released a video on Tuesday purporting to show the beheading of a second American hostage, journalist Steven Sotloff, raising the stakes in its confrontation with Washington over U.S. air strikes in Iraq.
President Barack Obama faced criticism over his foreign policy from both Democratic and Republican lawmakers on Sunday as he wrestled with crises in Iraq, Syria, Libya and Ukraine.
The leader of Nigeria's Islamist group Boko Haram said his fighters were now ruling the captured northeastern town of Gwoza "by Islamic law", in the first video to state a territorial claim in more than five years of violent insurrection.
The United Nations condemned on Monday "appalling, widespread" crimes by Islamic State forces in Iraq, including mass executions of prisoners that could amount to war crimes.
Al Qaeda-linked militants in Syria on Sunday freed an American writer missing since 2012 following what officials said were efforts by the Gulf Arab state of Qatar to win his release.
Reporters Without Borders expressed relief by Saturday's release of two Spanish journalists, El Mundo's Middle East correspondent Javier Espinosa and Ricardo Garcia Vilanova, who had been held hostage in Syria since September 2013.
Israeli warplanes struck a military base near the Syrian port city of Latakia, an Obama administration official told CNN. The attack has yet been confirmed by the Israeli government.