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.
US names Rubio, Tony Blair to Gaza board under Trump's plan
The White House on Friday announced some members of a so-called "Board of Peace" that is to supervise the temporary governance of Gaza, which has been under a fragile ceasefire since October.
Uganda's Museveni wins re-election, opposition leader at large
Veteran President Yoweri Museveni was declared the landslide winner of Uganda's presidential election on Saturday, extending his rule into a fifth decade after a contest marred by violent incidents and allegations of fraud.
Protesters in Denmark support Greenland after Trump's takeover threat
Thousands of protesters gathered across Denmark on Saturday in solidarity with Greenland amid US President Donald Trump's threat to annex the Arctic island, demanding that the United States respect Greenlanders' right to self-determination.
Egypt's Sisi says he values offer by Trump to mediate Nile dam dispute
Egypt's President Abdel Fattah al-Sisi said he valued an offer by US President Donald Trump to mediate a dispute over Nile River waters between Egypt and Ethiopia.
Ukrainian team heading to US for security guarantee talks, Zelenskyy says
A Ukrainian delegation is en route to the US for talks on security guarantees and a post-war recovery package, President Volodymyr Zelenskyy said on Friday, expressing hope the documents could be signed on the sidelines of the World Economic Forum in Davos next week.
