Greta Thunberg detained by police over coal mine protests

Greta Thunberg has been detained by authorities in Germany after taking part in an environmental protest.

Police say that this is the second time that Greta has been moved on by authorities this week.

Activists also occupied a giant digger at another coal mine in the west of the country as part of Tuesday’s demonstrations and joined a protest march near Lützerath.

Several activists who took part in the demonstration ran over to the Garzweiler open pit mine, according to dpa news agency.

One protester was able to enter the mine, RWE said, calling the move 'very reckless'.

Other protesters clashed with police near the mine, and officers used batons and pepper spray.

A spokesperson for the local Aachen police force confirmed to Sky News that Greta was part of the group of protesters who 'stormed' toward the edge of the 'steep and extremely dangerous' open cast mine.

Police also confirmed that Greta was not arrested, but carried away to be held with other protesters for identification.

Police and energy company RWE started evicting protesters from Lützerath on January 11, removing roadblocks, chopping down treehouses and bulldozing buildings.

Activists have cited the symbolic importance of Lützerath for years, and thousands of people demonstrated on Saturday against the razing of the village by RWE for the expansion of the nearby Garzweiler coal mine.

Although activists regard the lignite coal in the Garzweiler mine as the most detrimental form of coal, Germany's government is relying on it for short-term energy security while Russia's invasion of Ukraine plays out - hence the coal mine expansion.

The coalition government has promised that it is still committed to cutting out coal in the long term, but energy supplies to Europe have decreased severely due to Germany's reliance on Russian gas.

Protesters worry that bulldozing the village of Lützerath to expand its coal mines would release major greenhouse gas emissions.