Phnom Penh - A dispute over a 25-centimetre strip of land in Cambodia ended with a man murdering his brother and sister-in-law and then committing suicide, media reports said Thursday.

Police in Prey Kanlaong province said 42-year-old Chev Thuy fatally stabbed his brother and sister-in-law and then hanged himself on Tuesday after a drawn-out argument over the inherited parcel of land.

The Phnom Penh Post reported the family had previously asked the local land authority to help resolve the dispute but were unhappy with its resolution.

Rights organization Adhoc said it would investigate the case to see if further action by the authority could have prevented the deaths. (dpa)