Kenyan police have arrested a member of the opposition who played a key role in the mock inauguration of Raila Odinga on Tuesday.
Miguna Miguna was seized after a dawn raid at his home in the Kenyan capital of Nairobi.
Police used explosives to blast open his door, before leading Mr Miguna away.
On Thursday he had taunted police, telling them he had signed Mr Odinga’s oath and so they should come and arrest him.
He also told his supporters to burn pictures of Kenya’s president, Uhuru Kenyatta.
Mr Miguna’s arrest comes two days after police detained TJ Kajwang, a lawyer and politician who also attended the mock swearing-in.
Mr Miguna holds no official position but is the so-called general of the NASA Coalition’s “National Resistance Movement”, which organises civil disobedience and boycotts.
Kenya’s government has labelled the movement an “organised criminal group” following Mr Odinga’s stunt.