Interior Secretary Ryan Zinke is the latest high-profile departure from the Trump administration

US Interior Secretary Ryan Zinke will leave his post at the end of the year, in the latest high-profile departure from President Donald Trump’s administration.

When announcing it on Twitter, Mr Trump did not give a reason for Mr Zinke’s departure but the former congressman from Montana has come under scrutiny for his use of security details, chartered flights and a real estate deal.

His resignation comes just weeks before Democrats take control of the House, a shift in power that promises to sharpen the probes into the Interior Secretary’s conduct.

Mr Trump thanked the controversial congressman on Twitter.