The mood was tense in Kisumu, where residents said they were furious about what they called a hacked election.

Large parts of the city were calm, but in the Kondele neighborhood, crowds were being dispersed by police officers using tear gas.

Part of a nearby road was blocked, and tires had been set on fire. Some residents were seen running away.

“You cannot keep stealing votes at every election,” said Frank Opondo, 38, who was at the scene, while other people shouted, “No Raila, no peace!”

“The elections are not fair,” said Milama Obwanda, 37, as a crowd quickly formed around him. “We’re not going to relax until the decision we made yesterday is respected.”

His friend Doreen Atieno said that the hacking accusations and the killing of the election official needed to be investigated if the authorities and institutions in Kenya were to be trusted.

“We want to know,” she said. “We want leaders with clean hands. We’re not going to take it anymore.”