An operation was launched inside the Istanbul courthouse where gunmen linked to the far left DHKP/C had been holding the prosecutor investigating the death of teenager Berkin Elvan during 2013 protests.
A manhunt is underway in the area for a man described by police as "armed and dangerous." He was in the custody of a private security guard when he fled with the officer's gun.
The Corinthia Hotel, a hub for foreign visitors, was attacked by gunmen possibly linked to the Islamic State. Follow the latest developments here.
Alberto Nisman was due to testify to parliament on Monday over his claims that Cristina Fernandez de Kirchner plotted to clear Iranian suspects in the 1994 bombing of a Buenos Aires Jewish center.
LIVE UPDATES: 'Charlie Hebdo' Suspects and Gunman in Paris Kosher Store Killed in Simultaneous Raids
At least four hostages were killed in a kosher shop in the French capital before security forces carried out twin assaults on the site and on a printworks 22 miles from Paris where the magazine attackers were holed up. Follow latest developments here.
The death drew immediate protests in the suburb of Berkeley, just a few miles from Ferguson, where the killing of Michael Brown sparked months of unrest.
Video footage shows a soldier repeatedly grabbing the throat of Ziad Abu Ein, who died on the way to hospital. His death immediately sparked clashes in the Palestinian territory.
The group said Luke Somers would meet his "inevitable fate" if the United States does not meet a series of demands of which Washington is "aware."
Students Aarti and Pooja fought back when three men began to molest them on their way home from college.
Britain's prime minister suggested that the UK could leave the EU if its members thwarted his plans on immigration, which is fast becoming the hot-button issue of next year's election.
At least 10 pro-democracy activists arrested amid scuffles as officials clear Mong Kok camp; UK politicians pull out of Shanghai visit after China denies visa to former diplomat who voiced support for protesters.
One victim is in critical condition after a shooter opened fire at Florida State University's campus in Tallahassee. The shooter was killed by police after apparently opening fire on officers.
The brutality of the killings earlier this week of Shahzad Masih and his pregnant wife Shama Bibi surpassed even the usual horrific standards of such events.
A teenage runaway from Sydney has surfaced in a video taunting Barack Obama and Australian Prime Minister Tony Abbott over the US-led offensive and insisting the group won't stop until it has beheaded every 'tyrant.'
The North Korean leader's disappearance had led to speculation he was seriously ill or had even been toppled in a coup.
World Health Organization says man 'unlikely' to have contracted virus but case taps into rising nerves in Europe and beyond
Up to 18 people were reported killed in clashes between security forces and Kurdish protesters in several cities.
Four men arrested in a series of London raids, amid suggestions that they may have been planning a public beheading and other random street killings.
A nurse who treated two Ebola patients evacuated from the outbreak zone caught the virus despite wearing full protective gear.
On Friday, British aid worker Alan Henning was executed by the jihadists. They say Abdul Rahman Kassig, an American NGO founder previously known as Peter, will be next.