Kenyan President William Ruto announced on Thursday the dismissal of almost his entire cabinet and consultations to form a "broad-based government" following widespread anti-government protests.

He said the move affects all ministers including the attorney-general but excluded prime cabinet secretary and foreign minister Musalia Mudavadi and Deputy President Rigathi Gachagua.

Ruto said he decided on the dismissals "upon reflection, listening keenly to what the people of Kenya have said and after a holistic appraisal of the performance of my cabinet and its achievements and challenges".

The action follows largely peaceful protests led by young Gen-Z Kenyans that have widened into a broader campaign against Ruto and his government, with some demonstrations degenerating into deadly violence.

Ruto also said he will "immediately engage in extensive consultations across different sectors and political formations, with the aim of setting up a broad-based government".

This government would, he said, help him to develop "radical programmes" to deal with the country's huge debt burden, increase job opportunities, eliminate government waste and "slay the dragon of corruption".