Straits of Johor
This dispute resulted from Singapore's reclaiming of land in two areas, namely in the southwestern end of the island called the Tuas development, and in the waters adjacent to Pulau Tekong in the Straits of Johor. The latter does not involve any encroachment into the territorial waters of Malaysia, and Malaysia merely argued that the reclamation works would affect the environment of the Straits of Johor as a shared waterway.