Mexican authorities arrested one suspect responsible for the January 28 attack on Movimiento Ciudadano deputies in Culiacán, Sinaloa, on February 3, 2026, at approximately 2:00 PM UTC. The operation was led by SEDENA (@Defensamx1), SSP (@SSPCMexico), and the Criminal Investigation Agency of FGR (@FGRMexico), as announced by Omar García Harfuch (@OHarfuch) during the reporting window from 12:15 PM to 3:15 PM UTC. The detainee controlled communication radios, installed cameras to monitor authorities' movements, and acquired drones for the criminal cell involved in the attack. The arrest follows investigations ordered by President Claudia Sheinbaum (@Claudiashein) to apprehend all responsible parties and ensure the crime does not go unpunished, according to the official statement posted on X. Authorities stated that investigations continue to identify and arrest remaining suspects. The January 28 incident targeted deputies from the Movimiento Ciudadano party in Culiacán, the capital of Sinaloa state.