London marks International Pillow Day with pillow fight

Hundreds of people have gathered in Trafalgar Square in London to mark International Pillow Day.

It is an annual event that takes places across the globe and a chance for people to have a friendly fight with each other using pillows.

Big pillow fights also took place in Romania, the Netherlands and Hong Kong.

But there were a few rules for pillow fighters to follow: don't hit anyone without a pillow, don't hit anyone with a camera, and take your pillow home.