SINGAPORE, June 19 -- Two men allegedly involved in the fatal shooting of an Australian in Bali were briefly held by Singapore authorities before being deported to Indonesia, the Immigration and Checkpoints Authority (ICA) confirmed to The Straits Times yesterday.

The pair, identified by Indonesian police as 22-year-old MC and 27-year-old PMT, had transited through Changi Airport after fleeing to Cambodia in the wake of the deadly June 14 attack.

The incident saw 32-year-old Australian Zivan Radmanovic shot dead in a villa in Badung, Bali. A second man, 34-year-old Sanar Ghanim, was critically injured.

The attackers, reportedly masked, fled the scene with the help of a third man, DFJ, 27, who was later arrested at Jakarta's Soekarno-Ha...