Three members of a family were hacked to death over a land dispute between two groups of people in Garhaiwadi village of Bihar's Kishanganj district, police said.
The deceased were beheaded by sharp edged weapons late last night, Superintendent of Police Manoj Kumar said.
Those killed have been identified as Pandu Kishku (55), his wife Chhotmal Embram (50) and daughter Monica Kishku (21), the SP said, adding the bodies have been sent to Kishanganj Sadar hospital for post-mortem.
Further investigation is on, Kumar said.