From the BBC:

Poster
Protester want John Michuki to go

Thousands of demonstrators have been marching through Kenya's capital, angry at a police raid on a media group.

The Nairobi protesters waved placards demanding that Internal Security Minister John Michuki "must go".

Last week, hooded policemen seized equipment, halted TV broadcasts and burned thousands of newspapers belonging to the Standard media group.

The operation has been described as the biggest media crackdown seen in Kenya since independence.

Thousands of others are reported to be protesting in the cities of Mombasa, Nakuru and Kisumu.

The raid followed a story published by the media group that said the president had secretly met a leading opponent.