A girl studying in Class IV was killed after a wall of the newly built septic tank at her house at Mosavadi village near Arani collapsed on Saturday.
The police said V. Sharami, 9, was playing in front of the house where the tank was built. The tank was filled with water by workers to test the durability of its walls. However, they were not plastered completely. As she went near the tank, the wall collapsed, and she was dragged in. The body was sent to the Government Taluk Hospital at Polur for a post-mortem. The police have filed a case.