U.S. Secretary of State John Kerry and United Nations Secretary-General Ban Ki-moon criticized Turkish Prime Minister Recep Tayyip Erdogan for comments linking Zionism with fascism.

“The secretary-general heard the prime minister’s speech through an interpreter,” Ban Ki-moon’s office said in an e- mailed statement today. “If the comment about Zionism was interpreted correctly, then it was not only wrong but contradicts the very principles on which the Alliance of Civilizations is based.”

Kerry, who’s visiting Ankara, said he raised the comments directly in his meeting with Turkish counterpart Ahmet Davutoglu. Such remarks are unhelpful to the search for peace in the Middle East, Kerry told reporters in the Turkish capital. Kerry was headed for a meeting with Erdogan after the press conference.

Turkey’s ties with Israel, once a close military ally, have been strained since Erdogan called Israel’s military operation in Gaza that began in December 2008 “a crime against humanity.” Ties reached a low when nine Turks were killed in an Israeli commando raid on a Gaza-bound aid ship in 2010....