US national security adviser 'to leave role'

US national security adviser Mike Waltz is reportedly leaving his post.

Mr Waltz faced scrutiny after it emerged he created a group chat on the messaging app Signal in which defence secretary Pete Hegseth and other US officials discussed strikes on Yemen's Iran-backed Houthis.

It came to light after a US journalist was accidentally added to the group in March.

Reuters news agency, quoting an unnamed source, says Mr Waltz is to leave the job after less than five months.

His deputy, Alex Wong, is also leaving his role, sources briefed on the matter reportedly told the news agency.

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