All research and survey activities of foreign countries conducted in Vietnam’s exclusive economic zone and continental shelf, which have been established in accordance with the 1982 United Nations Convention on the Law of the Sea (UNCLOS), without Vietnam’s permission, violate the nation’s sovereign rights and jurisdiction, the spokeswoman stressed.

Vietnam is deeply concerned about and resolutely opposes the illegal survey operations conducted by vessel Hai Yang 26 of China in Vietnam's exclusive economic zone and continental shelf as established under the 1982 United Nations Convention on the Law of the Sea (UNCLOS 1982), Foreign Ministry spokesperson Pham Thu Hang said on June 6.