Three members of a family drowned in an irrigation tank near Tirumangalam on Tuesday afternoon.
Police identified the deceased V. Alagarasamy (36) and his daughter as Sangeeta (10) and son Maha Mukesh (5).
Police said Alagarasamy, the driver of Lakshmipuram, took his children to the Lakshmipuram tank to bathe.
When he took his son to chest deep water, he developed a fit and fell in with Mukesh. The girl who tried to save the boy also drowned. The accident occurred around 2.30 pm
The bodies were taken to the government hospital in Tirumangalam. The Tirumangalam taluk police is investigating.