Three persons were killed on the spot after being struck by lightning in Paraiyattur village near Aranthangi in Pudukottai district on Monday.

The deceased, identified as R. Illaiyaraja, 38, P. Sanjay, 18, and P. Sanjana, 16, died of severe burns.

According to the police, the incident occurred when Sanjay and Sanjana, who were siblings, were returning from school with their uncle Illaiyaraja on a two-wheeler amid heavy downpour.