Activist Greta Thunberg "detained" in Germany

Climate activist Greta Thunberg has been "detained" by police while protesting the demolition of a German village.
Demonstrations have been taking place in the village of Luetzerath since a decision was made to destroy the town to expand a nearby coal mine.
Authorities say the 20-year-old is being "detained" for identification.
Greta Thunberg was "detained" with other people taking part in the protests.