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 missiles hit Iran as path towards de-escalation uncertain
US missiles struck targets across Iran on Friday and President Donald Trump vowed "major military punishment" for Tehran and its Houthi allies in Yemen, though he once again left open the door to a diplomatic deal with Iran.
US military says it's completed 13th consecutive night of strikes on Iran
The US military said on Thursday night it had carried out a fresh wave of strikes on Iranian military targets, marking the 13th consecutive night of American attacks.
Indian government seeks time on minister resignation demand
Leaders of India's youth-led "cockroach" movement said on Friday that the government has asked for time until Saturday afternoon to respond on their demand for the education minister's resignation, following talks between the two sides.
Israel launches military operation after deadly clash near Palestinian village
Four Palestinians and two Israeli soldiers were killed near a Palestinian village on Friday in a confrontation that added to a growing toll over recent weeks as Israeli settler violence has intensified against Palestinians in the occupied West Bank.
Irish police intercept car with 'significant' bomb near Northern Ireland border
Irish police intercepted "a significant explosive device" in a car travelling towards the border with Northern Ireland this week that they said on Friday was likely the work of nationalist militants opposed to British rule in Northern Ireland.
