China has barred four New Zealand lawmakers from entering China, Hong Kong, and Macau for a year after they visited Taiwan in May. That is according to reporting by the New Zealand Herald on Wednesday, June 3.

Maureen Pugh from the National Party, Duncan Webb from the Labor Party, Laura McClure from ACT New Zealand and David Wilson representing New Zealand First have been added to the ban list. The Herald reported that the Chinese embassy told New Zealand’s parliamentary officials that the travel ban might be shortened or lifted if the lawmakers apologized for the visit.

A New Zealand Foreign Ministry spokesperson did not directly comment on the entry bans, but noted that visits by New Zealand MPs to Taiwan are a long-standing practice and do not violate the country’s one-China policy.

China is New Zealand’s largest trading partner and maintains that Taiwan has no right to establish state-to-state relations, a position that Taiwan rejects. Like most countries, New Zealand does not have formal diplomatic relations with Taiwan.