Key facts
- Ten assailants were killed and three arrested in Sinaloa state, Mexico.
- Naval personnel conducting flood monitoring were attacked.
- An explosive device was used in the initial assault.
- Three sailors were wounded, and one died.
- The operation took place during a major reinforcement of state security.
A security operation in Mexico's Sinaloa state resulted in the deaths of 10 assailants and the arrest of three others after naval personnel carrying out flood-monitoring duties were attacked with an explosive device. The navy reported that three sailors were wounded in the initial assault, with one fatality.
Naval personnel were engaged in monitoring rivers and dams for potential rises in water levels to warn communities ahead of the rainy season when the ambush occurred. The navy stated that security forces repelled a second assault in El Rosario municipality, leading to the 10 assailants being killed. The three detained suspects have been handed over to prosecutors for investigation.
This incident occurred amid a significant reinforcement of state security measures. Separately, Mexico has been experiencing severe weather, with heavy rains causing widespread flooding and landslides in various regions. As of October 14, 2025, at least 64 people were reported dead and 65 missing due to torrential rains and a tropical depression, affecting approximately 100,000 homes. The states of Hidalgo and Veracruz were particularly hard-hit, with significant casualties and infrastructure damage reported. Authorities have deployed thousands of personnel for rescue, cleanup, and monitoring efforts.