ST. PAUL — A performance on the nationally broadcast “Prairie Home Companion” show prompted an apology by Minnesota Public Radio and a warning to member stations about some profane words from a country songwriter.

Robbie Fulks performed live Saturday evening at the Fitzgerald Theater in St. Paul and included a couple of blasphemous words in his song.

MPR issued a language advisory to 670 stations across the country before the show was rebroadcast Sunday. It also aired an apology to MPR listeners. It also bleeped the words that were rebroadcast locally on Sunday.