Ephraim Mirvis wrote on Sunday that "no act of evil will deter us from uniting against the forces of darkness that seek to divide us."

Kogan, 28, who worked in the UAE for the Orthodox Jewish group Chabad, which seeks to support Jewish life for thousands of Jewish visitors and residents in the Gulf Arab state, vanished in Dubai, where he ran a kosher grocery store, on Thursday.

Israel has pledged to bring to justice those responsible for the murder of a prominent rabbi in the United Arab Emirates, denouncing his killing as a “heinous antisemitic terrorist act”. Zvi Kogan, who ran a Kosher shop in Dubai and worked for the Orthodox Jewish group Chabad, vanished in Dubai on Thursday.