Czech Senate speaker Milos Vystrcil will “pay a heavy price” for making an official trip to Taiwan, the Chinese government’s top diplomat said on Monday, prompting Prague to summon China’s ambassador though Vystrcil said he didn’t seek confrontation.

Vystrcil arrived in Taipei on Sunday on a visit to promote business links with Taiwan, saying the Czech Republic would not bow to Beijing’s objections.

China considers Taiwan a breakaway province ineligible for state-to-state relations.