Foreign Ministry spokesman Lu Kang said at a regular news conference on Tuesday that the establishment of diplomatic ties with China is a political decision made by El Salvador without any economic preconditions attached.

Taiwan Affairs Office of the State Council spokesman Ma Xiaoguang said on Tuesday that Taiwan authorities are urged to refrain from taking any action that undermines the well-being of Taiwan compatriots and to return to the "1992 Consensus" as soon as possible, as going against the trend of the times is futile.

Any attempt to create "two Chinas" or "one China, one Taiwan" will lead nowhere and will also be opposed by all Chinese people, Ma said.

Su Xiaohui, an international strategy researcher at the China Institute of International Studies, said in an interview with China Daily that it has been repeatedly demonstrated that the one-China principle is in accordance with the overwhelming consensus of the international community.

The establishment of diplomatic relations between China and El Salvador, which took place shortly after Taiwan leader Tsai Ing-wen's trip to Paraguay and Belize, deals a heavy blow to pro-independence forces in Taiwan, she added.