Czech President Vaclav Klaus has condemned supporters of Prague's first-ever Gay Pride festival.

According to the AP, Klaus has lashed out at a group of 13 western diplomats based in Prague who issued a joint statement in support of the festival which opens on Wednesday.

U.S. Ambassador to the Czech Republic Norman Eisen was among the signatories.

Klaus condemned the statement and accused the ambassadors of attempting to influence the political debate.

We stand in “solidarity with the lesbian, gay, bisexual and transgender communities in the Czech Republic, supporting their right to use this occasion to march together peacefully and lawfully,” the ambassadors wrote.

Earlier, Klaus defended his deputy chancellor Petr Hajek's statements criticizing Prague Mayor Bohuslav Svoboda for his support of the upcoming event.

Hajek said the march is “a political demonstration … of a world in which sexual or any other deviation becomes virtue.” He also called on Svoboda to quit the Civic Democratic Party, the nation's ruling party.

Critics called on Hajek to apologize, but Klaus came to his defense, saying he was not “proud” of the event.