A woman votes at a polling station in Brussels, Belgium, May 26, 2019. The European Parliament (EU) elections started in Belgium on Sunday. (Xinhua/Zheng Huansong)

People vote at a polling station in Brussels, Belgium, May 26, 2019. The European Parliament (EU) elections started in Belgium on Sunday. (Xinhua/Zheng Huansong)

Voters wait at a polling station in Brussels, Belgium, May 26, 2019. The European Parliament (EU) elections started in Belgium on Sunday. (Xinhua/Zheng Huansong)

A woman votes at a polling station in Brussels, Belgium, May 26, 2019. The European Parliament (EU) elections started in Belgium on Sunday. (Xinhua/Zheng Huansong)

A woman votes at a polling station in Brussels, Belgium, May 26, 2019. The European Parliament (EU) elections started in Belgium on Sunday. (Xinhua/Zheng Huansong)

People prepare to vote at a polling station in Brussels, Belgium, May 26, 2019. The European Parliament (EU) elections started in Belgium on Sunday. (Xinhua/Zheng Huansong)