THOUSANDS of people have filled George Square to criticise Donald Trump as the US president touched down at Glasgow Prestwick Airport.

The protest came after tens of thousands of demonstrators swarmed the streets of central London during Mr Trump’s first visit to the UK as US president.

The Glasgow rally - dubbed ‘Dump Trump’ - saw people of all ages and from all walks of life cram into the Square to blast the world leader’s policies, including immigration and women’s rights.

READ MORE: Strict restrictions around Glasgow Prestwick as Donald Trump prepares to touch down

Hundreds of colorful placards and message boards - many with expletives - filled the area in front of the City Chambers buildings.

Mr Trump landed at Glasgow Prestwick Airport with his wife Melanis shortly after 8pm amid high security.

The couple then headed to the luxury Trump Turnberry, hotel, spa and golf resort, located 23 miles south of Prestwick Airport, where the couple spent the rest of their weekend.

Various protests are planned to coincide with the president’s visit to Scotland, including a national demonstration and “carnival of resistance” in Edinburgh.

Campaigners were refused permission to fly the Donald Trump baby blimp at Holyrood tomorrow.

The 20ft inflatable depicting the US president as a nappy-clad baby holding a mobile phone was flown above Parliament Square in London yesterday.

READ MORE: Strict restrictions around Glasgow Prestwick as Donald Trump prepares to touch down

It prompted Mr Trump to say it made him “feel unwelcome” in the city, on his second day of a four-day UK visit.

Organisers had planned to transport the blimp to Scotland overnight on the sleeper train and fly it at a protest near the Scottish Parliament on Saturday.

But a spokeswoman for the Scottish Parliament said: "Parliamentary officials have declined a request to fly the balloon at Holyrood, as it would not be an appropriate use of the Parliament's grounds.

"We do, however, support the right to protest and have agreed to the rally setting off from Holyrood on Saturday."