A man and his son were among three people killed on the spot in a head-on collision between two motorcycles near Melur in the district on Sunday, police said.
The deceased were identified as Arumugam (45) and his son Lokesh (24), both residents of Othakadai, and Naveen Kumar (22) of Shanmuganathapuram.
According to the police, Arumugam and Lokesh were travelling towards Pulipatti along the Alagar Kovil road to buy meat for the festival when their motorcycle collided head-on with a two-wheeler ridden by Kumar, who was heading towards Melur from the opposite direction.
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All three died on the spot.
Melur police reached the scene, recovered the bodies and sent them to the Melur Government Hospital for post-mortem examination.
A case has been registered, and an investigation is underway, police added.