Polish Prime Minister Jaroslaw Kaczynski on Wednesday condemned a video posted on a newspaper's website, which allegedly showed a neo-Nazi rally organized by a youth movement associated with Deputy Prime Minister Roman Giertych's party.
Kaczynski described the incident as "a scandal" and said he wanted to know if any government officials were involved.
"This kind of act in a country where 6 million citizens were murdered (by Nazi Germany during World War II) is something extremely shocking," Kaczynski said.
The daily Dziennik's website posted on Wednesday a minute-long video apparently made in the Silesia region of southern Poland two years ago, showing neo-Nazis shouting the German Nazi salute "Sieg Heil" and lighting a large torch in swastika-form.
Dziennik said the participants were members of the All-Polish Youth, the youth wing of the League of Polish Families (LPR), which is the junior partner led by Giertych in the ruling coalition.
The newspaper also said a young woman in the video was Leokadia Zwiazek, an assistant of Giertych's father Maciej Giertych who is a member of the European Parliament and the LPR.
But Giertych denied the accusation and asked prosecutors to investigate the incident.