At least 31 people died and more than 500 were arrested in anti-government protests across Kenya on Monday, the Kenya National Commission on Human Rights (KNCHR) said in a statement on Tuesday.

The death of blogger Albert Ojwang in police custody last month has given the protests fresh impetus, fuelling anger against the authorities and bringing hundreds onto the streets.

Rallies to mark 35th anniversary of pro-democracy uprising have turned into calls for President William Ruto to resign.