TORONTO  Iran denounced charges by the Norwegian government that it had illegally confiscated a Nobel Peace Prize winner’s medal and frozen her bank account, the IRNA news agency reported Friday.

Iran called the assertion an interference in its internal affairs and said the Nobelist, Shirin Ebadi, owed taxes to the government.

“We are surprised that Norwegian officials can make such hasty and biased comments and disregard the laws and regulations of other countries,” a Foreign Ministry spokesman, Ramin Mehmanparast, was quoted as saying.

Mr. Mehmanparast denied that Ms. Ebadi’s medal, which she won in 2003, had been confiscated, but his comments indicated that her assets had been frozen.