Inspector general of police Japhet Koome said that police will probe the violence that resulted in the death of a Maseno university student.
In a statement on Tuesday, he said even as police acted within the law, chaos emerged and a life was lost.
"It is regrettable that even after officers restrained themselves, acted within the law, and effectively contained the situation, rioters invaded Maseno Police Station hulling stones at police officers and property, and in the process, we lost one male student from Maseno University," he said.
"In compliance with the Constitution and the National Police Service Act of 2011, we have commenced our Investigations into the matter."
Koome condemned the violence that was meted out against police who were discharging their official duties.
He said that during the Monday protests, 25 people and seven officers were injured in Nyanza.
Koome added that ten Police vehicles were damaged, 24 officers injured and 213 people were arrested in Nairobi.
"We want to remind the public that no one is above the law. Instead, there is a slippery slope between freedom of assembly, picketing, and petitioning as enshrined in Article 37 of the Constitution of Kenya 2010, and the blatant infringement of the rights of others as we saw in yesterday's unlawful demonstrations," he said.
He said the standoff witnessed in Nairobi and Kisumu amounted to violence against police and economic sabotage.
"Despite their provocation against police, our Officers executed their national security mandate professionally, upholding the rule of law and utmost respect for human rights," Koome said.
