A man killed his 18-year-old sister in Kacha Khuh village of Khanewal District in a yet another case of ‘honour killing’.Muhammad Mudassir, 27, has been arrested and charged with murder, the Kacha Khuh police said.Amna, a resident of Chak number 4, had eloped with Muhammad Yasin. The couple tied the knot in a court around two months ago.Mudassir, Amna’s brother, was infuriated when he heard about their marriage four days later.One week ago, a local court (Panchayat) called both the families and after hearing their arguments, told Yasin's family to marry off his 10-year-old sister to Mudassir.Three days before the marriage, which was supposed to take place on Tuesday, Yasin’s father refused to give his daughter in ‘vani’ – a practice in which a woman is handed over or forcibly married to someone in return for the sins of her male relative(s).To avenge his 'humiliation', Mudassir murdered his sister with an axe.A case has been registered against him at the Kacha Khuh police station.In 2012, a 19-year-old girl was allegedly killed by her brother in Khanewal. The case emerged when police found an exhumed body of Saima Bibi from a graveyard in her native village Nandpur on receiving a tip-off that she was killed over an alleged relationship with a boy.