Donald Trump has been criticised on social media today for appearing to ignore Queen Elizabeth II during a meeting with her at Windsor Castle.

The US President and the British Monarch came together for a 47-minute "social visit" in which they attended a formal ceremony to review troops at the royal castle.

In vision from the interaction, Trump can be seen walking in front of the 92-year-old Queen and appearing to block her walking path while seemingly oblivious to her being by his side.

The visit between the pair ran for 17 minutes longer than expected and featured minimal conversation throughout the ceremony.

Users on social media have since slammed him online for his actions, with some describing him as "lacking in dignity and without a shred of respect".

After Trump and the Queen shook hands, "The Star-Spangled Banner" was played and the President was then guided by the Monarch on a review of the honour guard in the castle courtyard.

Following the formal ceremony, Trump then returned to London by helicopter for the Air Force One flight to Scotland.

He and his wife planned a private weekend at his golf property in Glasgow before his meeting Monday in Finland with Russian President Vladimir Putin.

The visit followed shortly after Mr Trump attacked CNN, NBC News and the British tabloid The Sun during his UK trip that saw him meet with British Prime Minister Theresa May.

During a news conference today Ms May, Mr Trump attacked NBC's Kristen Welker for what he called dishonest reporting following her question about relations with NATO.

He called out The Sun for supposedly not printing positive things he said about May during an earlier interview. The Sun said it wasn't true.

Trump also refused to take a question from Jim Acosta, chief White House correspondent for CNN, saying he doesn't answer questions from the "fake news" outlet.

This didn't stop Trump from answering a question from Acosta after the news conference broke up.