Tens of thousands of anti-government protesters have gathered outside Government House in Bangkok calling for Prime Minister Yingluck Shinawatra and her administration to resign.
Some protesters climbed the fences but the gathering appeared to be mostly peaceful.
Yingluck said on Saturday the police would act with restraint if people tried to occupy public buildings, including their main target, her Government House offices.
More top news
The Duchess will carry out her first engagement as Honorary Air Commandant of the Air Cadets after assuming the role in December.
Stars will entertain an audience of more than 100 million as they take to the Super Bowl half-time stage.
Jeremy Hunt is to announce a £4.2 billion investment to bring the NHS into the digital age.