Four more Indian youths including three cabbies were attacked in Brisbane, Australia, even as a couple was arrested on Thursday over the killing of Ranjodh Singh whose partially-burnt body was found last month. <br/><br/>Sky News reported that apart from three cab drivers, the fourth victim was a 23-year-old pizza delivery boy who was bashed up with a cricket bat and robbed while making a delivery in Brisbane. Brisbane-based Indian consul S D Singh said that police yesterday informed him about the attacks and also arrested one person involved in one of the incidents. Indian High Commissioner Sujatha Singh will reach Brisbane shortly and meet community leaders and members of the Queensland police to discuss the recent spate of attacks.<br/><br/>Meanwhile, a 23-year-old man and his 20-year-old wife were arrested at two addresses in Sans Souci in Sydney's south in connection with 25-year-old Ranjodh Singh's murder. Singh's body was found beside Wilga Road, Willbriggie, near Griffith, on December 29. He was last seen on the streets of Griffith three nights before his body was found. Detectives claimed that the arrested couple knew Singh well and worked with him on farms in the region.