evidence: SINGAPORE - A plan by Malaysia to set up a royal commission of inquiry to study a 2018 decision to drop a review of an international court’s ruling on three disputed islets, including Pedra Branca, is a Malaysian "internal matter" and will not affect bilateral ties, Singapore said on Jan 25. [...] Malaysia uses Malay names to refer to Pedra Branca (Batu Puteh) and the two maritime outcrops – Middle Rocks (Batuan Tengah) and South Ledge (Tubir Selatan). [...] Malaysia and Singapore have set up a joint technical committee to draw the maritime boundary around Pedra Branca and Middle Rocks, and to determine the ownership of South Ledge.