They said the 3-year-old male child died on the spot when he was thrown off after a college van rammed the motorcycle he was travelling with his parents from the rear at Bhavani
Both the husband and wife were seriously injured and have been hospitalised.
In the second incident late last night,the 11 month child accidentally came in contact with a live wire, attached to the television.
The parents rushed him to a private nursing home from where he was referred to Government Headquarters Hospital late last night, but the toddler died, police said.