ABIDJAN, Ivory Coast — Mutinous soldiers in Ivory Coast shot three people on Saturday and cut off access to the second-largest city, Bouaké, as a revolt escalated over demands for bonus payments.

The revolt began in Bouaké early on Friday and spread quickly, following a pattern similar to a mutiny by the same group in January that paralyzed parts of Ivory Coast.

Mutineers seized control of the national military headquarters and the Defense Ministry in the center of the commercial capital, Abidjan, on Friday.

They stepped up the pressure on Saturday, blocking roads out of Bouaké, the center of January’s uprising, and protesting in several other locations, including the northern city of Korhogo, where two men on a motorcycle were shot in the legs as they tried to force their way through a roadblock set up by the mutineers.