Hong Kong airport is once again paralysed by protesters who want to see their freedoms protected. Freedoms that they were promised over 20 years ago, when the UK handed Hong Kong back to China.
But once again, what began as a peaceful demonstration has ended in chaotic violence.
Will China step in? US President Donald Trump has just announced on social media that his own intelligence services have told him that the Chinese government is moving troops to the border.
Warning: this report contains scenes of the violence.