At least 14 people have been killed during a second round of voting in local elections in the eastern Indian state of Bihar, police say.
In one attack, upper-caste gunmen killed nine members of a lower-caste group in Nalanda district, south-east of state capital Patna, police said.
The shootings followed the killing of an upper-caste supporter at a polling booth in a neighbouring village.
The first round of voting in Bihar last Monday claimed at least 12 lives.
Chief Minister Nitish Kumar, whose home district is Nalanda, said Thursday's victims were killed in "indiscriminate" firing. He said the attack was not related to caste but to the election.
Members of the upper castes are angry after the Bihar government set aside 20% of the seats in the village-level polls for lower or extremely backward castes.