Thousands of Belgians both north and south of the Flemish-French language divide joined a weekend singalong to fight climate change, with organisers claiming more than 60,000 people took part.

The weekend "Sing for the Climate" event aimed to film as many people as possible singing the same song in scores of towns and villages -- titled "Do it Now" and based on the melody of Italian classic "Bella Ciao".

Organisers aim to put footage together in a clip ahead of the next UN climate change conference in Doha.

"We want to remind national and international politicians of their responsibility and show them that we are many," the organisers said on their website.

Watch videos from various Belgian cities below: