Ukraine's President Volodymyr Zelenskiy reacts at his party's headquarters after a parliamentary election in Kiev, Ukraine July 21, 2019. (Photo: VCG)

KIEV, July 22 (Xinhua) - Members of Ukrainian President Volodymyr Zelensky's Servant of the People party are leading in 99 single-mandate constituencies in the nation's snap parliamentary elections, said the country's Central Election Commission on Monday.