Turkey sparked outrage on Friday after it declared a day of mourning for the death of Hamas leader Ismail Haniyeh. Flags around the world were lowered to half-mast in honor of his passing, including in Israel.

The Israeli foreign minister summoned the deputy Turkish ambassador for a “severe reprimand” after the Turkish embassy in Tel Aviv lowered its flag to honor Haniyeh’s death.

“The [Israeli government] will not tolerate expressions of mourning for a murderer like Ismail Haniyeh,” Foreign Minister Israel Katz said in a statement.

Katz went on to accuse Erdoğan of turning Turkey into a “dictatorship” for supporting “Hamas’ murderers and rapists, against the stance of the entire free world.”

Turkish Foreign Ministry Spokesperson Oncu Keceli responded to Katz’s comments, stating, “You cannot achieve peace by killing negotiators [or] threatening diplomats,” in an apparent reference to Haniyeh, who was reportedly involved in ongoing ceasefire talks. 

Pictures on social media show that the Turkish flag was not only lowered to half-mast in Tel Aviv, but also in Washington, D.C., although Digital could not immediately verify these images. 

Neither the Turkish embassy in Washington, D.C., nor the U.S. State Department immediately returned Digital’s questions regarding the incident. 

Erdoğan has been vocal in his condemnation of the killing of the Hamas terrorist earlier this week. 

Haniyeh was killed in an attack that allegedly involved a bomb planted in the visitor quarters where Haniyeh was staying in Tehran, according to a report . 

Questions have mounted over how a bomb was allegedly planted months ahead of time in a building heavily monitored by Iran’s Islamic Revolutionary Guard Corps.

Israel has not taken credit for the killing of the Hamas leader like it did for the strike in Beirut on Tuesday, in which Hezbollah leader Fuad Shukr, head of the group’s military operations, was killed. 

Iran, along with Hamas and Hezbollah, has still accused Israel of the death of Haniyeh and has vowed to take revenge. 

Reuters contributed to this report.