A war of words between two siblings spiralled into a bloody fight when a teen hacked his younger brother with a machete, reported Kosmo!.
The shocking dispute was witnessed by their mother at Kampung Rampangi in Kuching.
The elder brother ran away with the weapon immediately after the assault.
Kuching district police chief Asst Comm Abang Ahmad Abang Julai said the mother was helpless when the gory fight took place.
Police are still trying to determine the cause of the fight as the victim whose knees and face were injured was treated by Civil Defence Force personnel before being admitted to the Sarawak General Hospital.