The incident took place yesterday evening in village Rasoolpur in the Sadarpur area in this district, they said.
The deceased have been identified as Ramashankar (10), Aman (8), Vandana (7) and Gauri (7).
The injured children, Goldy (13) and Arun (8), rushed to a hospital, where their condition was stated to be serious, the police said.
The bodies of deceased have been sent for post-mortem, they said.
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