The Foreign Ministry has summoned China's ambassador over the republic's encroachment into Malaysia's exclusive economic zone.

"The Foreign Ministry (yesterday) called in the ambassador of the People's Republic of China to convey Malaysia's position and protest against the presence and activities of Chinese vessels, including a survey vessel, in Malaysia's Exclusive Economic Zone (EEZ) off the coasts of Sabah and Sarawak.

"The presence and activities of these vessels are inconsistent with Malaysia's Exclusive Economic Zone Act 1984, as well as the 1982 United Nations Convention on the Law of the Sea (Unclos)," said Wisma Putra.