John Bolton has been called in to testify in the impeachment inquiry into US President Donald Trump.
The former National Security Adviser has been summoned by the House of Representatives investigators.
The US President is being investigated for pressuring Ukraine to investigate former US Vice-President Joe Biden and his son.
Trump denies the claims.
Bolton, who has spoken against the president on the matter, has been asked to testify on November 7.
Turkey to turn over military camp in northern Iraq
Iraqi Prime Minister Ali al-Zaidi and Turkish President Tayyip Erdogan have agreed on Wednesday for Turkish forces to gradually hand over a military camp at the Bashiqa-Zilkan base in northern Iraq to the Iraqi government.
2 dead, 6 injured during Russian missile attacks on Kyiv
Russian forces have attacked the Ukrainian capital Kyiv early on Thursday with ballistic missiles, killing two people and injuring six, as debris crashed down on several districts, said Mayor Vitali Klitschko.
AI leaders warn UN of security risks as systems grow more powerful
Executives from three of the world's leading artificial intelligence companies briefed the UN Security Council on Wednesday amid warnings that increasingly powerful AI systems could soon improve themselves, slip beyond human control and pose a threat to international security.
Rubio says Russia and Ukraine voiced interest in 'limited ceasefire'
Ukraine and Russia have both voiced an interest in a limited ceasefire involving grain and energy-related targets, US Secretary of State Marco Rubio said on Wednesday after meeting Russian Foreign Minister Sergei Lavrov in New York.
One killed in attack on ship off Oman coast while heading to India
One Indian national was killed in an attack on the bulk carrier MV Cape Dao while the vessel was heading towards India, the Indian embassy in Oman said on Wednesday.
