evidence: Sabah joined the neighbouring state of Sarawak, and the states of the Malay peninsula to form the Federation of Malaysia in 1963. But the territory was once part of the centuries-old sultanate of Sulu, and Filipino politicians have sometimes used that history to suggest Sabah should be part of the modern-day Philippines. [...] "I am summoning the Malaysian ambassador" to the Department of Foreign Affairs, he added in another post, in response to former Philippine Senator JV Ejercito’s Twitter post that Sabah "historically belongs rightfully to the Philippines". [...] This is an irresponsible statement that affects bilateral ties. @MalaysiaMFA will summon the Philippines Ambassador on Monday to explain. Sabah is, and will always be, part of Malaysia. https://t.co/KcUnDxOySl — Hishammuddin Hussein 🇲🇾 (@HishammuddinH2O) July 29, 2020