Members of Cymdeithas yr Iaith are occupying the Welsh Government offices in Cathays Park Cardiff.
They say that the First Minister’s lack of action following the Census results, which showed a decline in the number of Welsh speakers, is creating a ‘political crisis’.
The protest is part of a general Cymdeithas campaign to put pressure on the Labour Government to act urgently in light of crisis facing the Welsh language.
Cymdeithas yr Iaith members are calling on the Government to adopt six basic policy changes, such as Welsh-medium education for all, fair funding for the language, and a new planning system for the benefit of our communities.
More top news
Green keeper Gareth Pugh died after he fell into a lake while collecting golf balls.
The Newsweek Quiz - where we will be testing your knowledge from the last seven days of news here in Wales.
Swansea must learn the Italian art of defending to continue their climb up the league table, says head coach Francesco Guidolin.