# Fatal accidents in Guaymallén, Mendoza > Developing situation record from CLSTR: https://clstr.news/situations/fatal-accidents-in-guaymalln-mendoza > Updated: 2026-10-11T20:00:47.000Z. Sources: 8. Developments: 2. Two separate fatal accidents involving children have been reported in Guaymallén, Mendoza. In mid-September, a 61-year-old woman and her 23-month-old grandson died after falling into an open septic tank at a residence in Rodeo de la Cruz. Authorities are investigating whether the child fell first and the grandmother attempted a rescue. In October, a one-year-old girl died from drowning after being found in an irrigation ditch near her home on Severo del Castillo street. The Guaymallén Fiscal Office has launched an investigation into the circumstances of the accident. ## Claims - A 911 call reported the disappearance of a one-year-old girl at 14:50. (reported by 3 sources) - The one-year-old girl was found in an irrigation ditch near her residence on Severo del Castillo street. (reported by 3 sources) - Medical professionals determined the cause of death was drowning. (reported by 1 source) - The Guaymallén Fiscal Office is investigating the circumstances of the accident. (reported by 1 source) ## Timeline ### 2026-10-11: Guaymallén: One-year-old girl dies in irrigation ditch accident A one-year-old girl died in Guaymallén, Mendoza, after being found in an irrigation ditch near her home. Authorities have launched an investigation into the accidental drowning. 7 sources. https://clstr.news/cluster/guaymalln-one-year-old-girl-dies-in-irrigation-ditch-accident ### 2026-09-17: Guaymallén: Woman and grandson die after falling into septic tank A 61-year-old woman and her 23-month-old grandson died after falling into an open septic tank in Guaymallén, Mendoza, on Wednesday night. 2 sources. https://clstr.news/cluster/guaymalln-woman-and-grandson-die-after-falling-into-septic-tank --- Cite as: Fatal accidents in Guaymallén, Mendoza. CLSTR, https://clstr.news/situations/fatal-accidents-in-guaymalln-mendoza