US President Donald Trump announced in a tweet on Tuesday that he has asked national security adviser John Bolton to resign.
He noted that he "strongly disagreed with many" of Bolton's suggestions "as did others in the administration", and added that he would appoint a replacement next week.
The tweet came just an hour after the White House press office said Bolton was scheduled to appear at a press briefing alongside Secretary of State Mike Pompeo and Treasury Secretary Steve Mnuchin.
In his own Twitter message, Bolton disputed the president's account of his departure. "I offered to resign last night and President Trump said, 'Let’s talk about it tomorrow'," he tweeted.
According to reports, the two men disagreed on policies towards Afghanistan, North Korea and Russia.

Trump says Israel banned from bombing Lebanon
India fails to pass parliament expansion bill linked to quotas for women
Trump says blockade on Iran 'in full force' until deal is reached
Iran says Strait of Hormuz open as Trump sees deal 'soon' to end war
Lebanese return home as ceasefire with Israel mostly holds
