With the Corpus Christi public holiday on Thursday, many workplaces have given their employees time off to enjoy a long weekend.
Polish police on Wednesday launched an annual road safety campaign and stepped up checks as people began heading off on short vacations.
Police have appealed to drivers to keep their speed down and stay alert behind the wheel as roads swarmed with traffic destined for the seaside and popular resorts.
When Poles travelled en masse during the May long weekend, 19 people were killed and 383 injured in 307 accidents nationwide, according to police statistics.
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Source: IAR, PAP