Greta Thunberg has been arrested during a protest at KTH Royal Institute of Technology in Stockholm.

Footage online shows the Swedish activist being dragged away by officers who proceed to sit her up against a wall.

Other campaigners can be seen being spoken to by police during the demonstration at the university.

Thunberg, alongside her fellow protesters, are mostly all wearing face masks.

Greta Thunberg has been arrested at a protest in SwedenPA

It is not the first time that the 21-year-old has been arrested this year. In March, the climate activist was arrested after she protested outside the Swedish parliament building in the country's capital.