The Twitter logo is shown at its corporate headquarters in San Francisco, California

Four senior Twitter executives are leaving the media company, chief executive , the biggest leadership changes since co-founder Jack Dorsey returned a(...)

North Korean leader Kim Jong Un is pictured during a visit to a museum earlier this week. His country, which recently spiked tensions in Asia with a nuclear weapons test, says it has arrested a US college student for allegedly conducting a “hostile act” against the communist country. Photograph:  Reuters/KCNA.

North Korea, which recently spiked tensions in Asia with a nuclear weapons test, says it has arrested a US college student for allegedly conducting a(...)

St Elijah’s Monastery, one of the earliest Christian settlements, and the oldest in Iraq, near Mosul, in 2009. Isis has damaged or destroyed scores of historic sites and monuments as part of a campaign to eradicate remnants of cultures it considers anathema to its extremist vision of Islam. Photograph: Eros Hoagland/New York Times

Islamic State destroyed one of the oldest Christian sites in Iraq as part of its campaign against ancient sites in the country, according to satellite(...)

Photograph released by North Korea’s official Korean Central News Agency (KCNA) shows Kim Jong-Un signing a document for a hydrogen bomb test in Pyongyang. Photograph: AFP/Getty Images

North Korea drew threats of further sanctions from the UN after claiming to have tested a nuclear bomb on Wednesday The underground explosion trigger(...)

In October, the US Navy sent the USS Lassen, a guided-missile destroyer, on patrol within  12 nautical miles of Subi Reef in the Spratly archipelago. China responded by accusing Washington of having a “cold war mentality”. Photograph: Evan Kenny/EPA/US Navy

Was there a more potent image in 2015 to represent China’s newfound confidence in matters of foreign policy than the satellite photograph of a land r(...)

Hillary Clinton: her aide Sidney Blumenthal questioned the Tory leader’s talks on an election pact with the UUP and questioned whether he supported the February 2010 power-sharing deal in Northern Ireland. Photograph: Reuters

David Cameron was accused of “threatening recklessly to destroy a generation of work” by a close adviser to Hillary Clinton when he met union(...)

An Israeli soldier stands near the bodies of a   Palestinian and Isreali killed    at a West Bank petrol station: Eighty-six Palestinians,   20 Israelis and an American student have been killed in the spate of violence since October 1st. Photograph: Jim Hollander/EPA

A Palestinian stabbed and killed an Israeli at a petrol station in the Israeli-occupied West Bank on Monday. Meanwhile, in Jerusalem two Palestinian (...)

Israeli soldiers investigate  the scene of  a fatal stabbing of an Israeli woman at a bus stop and hitch hiking post outside Efrat in the West Bank settlement block of Gush Etzion, south of Jerusalem,  November 22nd, 2015. Photograph: Jim Hollander/EPA

An Israeli woman was stabbed to death and three Palestinian attackers were killed in a series of incidents in the Israeli-occupied West Bank on Sunday(...)

 Security forces surround the Radisson Hotel during a hostage situation in  Bamako, Mali on Friday. Photograph: EPA

Malian security forces are hunting “more than three” suspects after a brazen assault on the Radisson Blu hotel in the capital that killed 20 people, m(...)

Tourists walk under flags that have been lowered to half mast on the Washington Monument grounds to pay respect to the victims of the Paris attacks. Photograph: Mark Wilson/Getty Images

The US military has banned troops and civilian personnel from any non-work-related travel to Paris, a Pentagon spokesman said yesterday, after deadly (...)