A verbal quarrel between two siblings escalated into a clash in which one of them was murdered at Thirukkuvalai on Saturday. S. Santhiyagu, 45, had consumed alcohol and asked money from his elder brother S. Arokiasamy, 54. Annoyed by his behaviour, Arokiyasamy scolded him. This led to a fight between the two when Arokiyasamy hit Santhiyagu with a gardening tool. The Thirukkuvalai police arrested Arokiasamy on murder charge. Santhiyagu’s body was sent to Nagapattinam GH for post-mortem.