US President Donald Trump has addressed conspiracy theories suggesting his wife Melania is either sick, near death or living outside the country, after her brief disappearance from the spotlight following kidney surgery.

US First Lady Melania Trump has been caught up in another plagiarism row, following the launch of her new online safety for children campaign on Monday.

The Twitterati were quick to mock the Trumps’ relationship, with some social-media users describing the behavior as a “hand-holding-by-coercion attempt.”