Updated

Turkey has summoned the Swiss ambassador to protest his country's probe of a Turkish official alleged to have denied Armenians endured a genocide in the 1900s.

Swiss laws criminalize denying that the killings of some 1.5 million Armenians by Ottoman Turks in 1915 was genocide. Turkey insists there was no systematic campaign against Armenians.
Turkey's chief European Union negotiator Egemen Bagis is alleged to have said in Switzerland, "There is no Armenian genocide. Let them come and arrest me."

A Turkish Foreign Ministry official, speaking anonymously due to government rules, says Swiss Ambassador Raimund Kunz was told Monday the probe was "unacceptable."

Zurich prosecutor Christine Braunschweig confirmed officials have opened a preliminary investigation into the allegations.