The ban is not applicable to transit transportation.
The Cabinet of Ministers, Ukraine's government, has tightened quarantine-related restrictions in the regions of the red zone, having banned passenger transportation services.
This was reported by the COVID19_Ukraine channel on Telegram.
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As of today, there are four Ukrainian regions (three of them are in Ukraine's west) that belong to the red quarantine zone: Zhytomyr, Zakarpattia, Chernivtsi, and Ivano-Frankivsk regions.
The Health Ministry earlier explained that a tough lockdown might be re-imposed throughout Ukraine if there are 13 or more regions that are included in the red zone.