A diplomatic crisis has erupted between Poland and Israel following the death of a Polish aid worker in Gaza, with the Polish president denouncing a comment by the Israeli ambassador as “outrageous” and the foreign ministry in Warsaw saying it was summoning him for a meeting.

A Polish man, 35-year-old Damian Sobol, was among seven people who were killed while delivering food to besieged Palestinians in Gaza with the charity World Central Kitchen this week.

Amid shock and outrage in Poland over the incident, Israel’s ambassador to Poland, Yacov Livne, pushed back on Tuesday at what he said were attempts by the “extreme right and left in Poland” to accuse Israel of “intentional murder in the attack”.