LONDON (AP) — The Latest on Britain's historic vote to leave the European Union (all times local):

8:50 a.m.

Britain's shadow health secretary has resigned from the shadow cabinet amid a dispute over Labour leader Jeremy Corbyn's leadership in the aftermath of Britain's vote to leave the European Union.

The Press Association reported Heidi Alexander announced her resignation Sunday, shortly after Corbyn fired shadow foreign secretary Hilary Benn.

The BBC reports that up to half of the shadow cabinet is set to resign in a bid to force Corbyn to step down.

The opposition leader has faced accusations from his own lawmakers that he led a weak campaign in Britain's EU referendum and is facing a motion of no confidence.

The Observer newspaper reported Sunday that Benn has been plotting against Corbyn.

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8:40 a.m.

U.S. Secretary of State John Kerry will visit Brussels and London on Monday as the world grapples with the implications of Britain's historic vote to leave the European Union.

Kerry will bring messages of American support to both places Monday.

In Brussels, he will meet the 28-nation bloc's foreign policy chief Federica Mogherini. In Britain, he will see Foreign Secretary Philip Hammond.

Kerry arrived in Rome on Sunday for scheduled talks with Israeli Prime Minister Benjamin Netanyahu.

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8:30 a.m.

British Labour party leader Jeremy Corbyn has fired his shadow foreign secretary amid a dispute over his leadership in the aftermath of Britain's vote to leave the European Union.

Hilary Benn told the Press Association Sunday that Corbyn dismissed him after he told him he had lost confidence in his ability to lead the party.

Benn said that "following the result of the EU referendum, we need strong and effective leadership of the Labour Party that is capable of winning public support."

The dismissal follows claims in the Observer newspaper that Benn was plotting against Corbyn.

The opposition leader has faced accusations from his own lawmakers that he led a weak campaign in Britain's EU referendum and is facing a motion of no confidence.