A one-and-a-half-year-old boy drowned after falling into a lake at the back of his house at Karaimedu in Nagapattinam district on Saturday. The deceased was identified as Sai Alvin, son of Vinoth.

According to police sources, the incident occurred around 2 p.m. The boy’s parents rushed him to the Nagapattinam Government Hospital, where he was declared dead.

The boy’s relatives alleged that deep pits dug in the lake, which is about 50 feet from Mr. Vinoth’s house, for soil extraction might have caused the tragedy. The body was sent for a post-mortem examination.