Kenyan media reports that at least 13 people have been charged by authorities for taking part in unlawful assembly during the famous #CORDdemos.
Former prime minister and now opposition leader Riala Odinga led the demonstrations which have now entered their fourth week.
Odinga is calling for the disbandment of the current electoral commission, a move Kenyan president Uhuru Kenyatta termed illegal.
On Monday, heavy clashes between police and opposition supporters were reported across the country with most activity in Mombasa and Nairobi cities.
Police violently crushed the demonstrations and arrested dozens of opposition supports.
So far, 13 of them have been charged at Homa Bay court and freed on Sh10,000 bond or Sh2,000 cash bail.
However, three people were killed in the skirmishes in the western part of the country.
Two people died of gunshot wounds in the western town of Siaya, and one from a head injury after falling over while running from tear gas in Kisumu, also in the west.
Police in Siaya opened fire “in self defence” after “a mob with catapults” approached a municipal office, according to a police statement, which said 29 officers were injured in the incident.
Riot police equipped with shields and batons used tear gas and water canon to disperse protesters who also tried to gather in the capital Nairobi and the port city of Mombasa.
The police statement also said prison wardens escorting criminals shot and injured five “rioters” who attacked their bus.
Opposition leaders claimed Monday that several of their supporters had been “killed in various parts of the country” but gave no numbers.