Kenyan police have fired tear gas and water cannons to disperse protesters as thousands took to the streets to mark the first anniversary of anti-government demonstrations that left dozens dead.

Youth-led protests against police brutality and poor governance have erupted across Kenya, with thousands gathering in Nairobi.

Thousands of protesters against police brutality and government corruption clashed with police in Nairobi, who hurled tear gas canisters and wielded batons, leaving several people injured, as demonstrations spread around the country.