Lebanon's flag was projected onto Tel Aviv's city hall Wednesday after the devastating Beirut blasts, in Israel's latest gesture towards a country with which it is technically at war.
"Tonight we will illuminate the city hall with the Lebanese flag," Tel Aviv's Mayor Ron Huldai said on Twitter.
"Humanity precedes any conflict, and our hearts are with the Lebanese people in the wake of the terrible disaster that befell them," he added.
Yair Netanyahu, the prime minister's son, lashed out against the decision on Twitter, calling it "simply insane. Lebanon is officially an enemy state. By law, it is a criminal offense to fly an enemy flag."
No such law exists in the Israeli legal code.
Minister for Jerusalem Affairs Rafi Peretz, a member of the religious-Zionist Jewish Home party, also condemned the gesture following the explosions at Beirut port that killed more than 100 people and injured thousands of others.
"It is possible and necessary to provide humanitarian aid to civilians who were hurt in Lebanon, but waving an enemy flag in the heart of Tel Aviv is moral confusion," Peretz wrote on Twitter.
Israel and Lebanon are still technically at war, while tensions with the powerful Lebanese Shiite movement Hezbollah have spiked in recent weeks.
Hezbollah and Israel fought a devastating month-long conflict in 2006 in which Lebanon's infrastructure was badly damaged. The war killed more than 1,200 Lebanese, mostly civilians, and 160 Israelis, most of them soldiers.
But on Tuesday, hours after the massive explosions at Beirut's port, Prime Minister Benjamin Netanyahu said his National Security Council had offered Lebanon aid, via the UN.
Addressing Knesset on Wednesday, Netanyahu extended "condolences to the people of Lebanon," and said Israel remained ready to offer "humanitarian assistance" to those affected.
Palestinian President Mahmoud Abbas declared Wednesday a day of mourning and ordered Palestinian flags in the territory lowered to half-mast in solidarity with Lebanon.
In the Gaza Strip, residents of Khan Yunis organized a blood drive for casualties in Beirut.
Israel tightly controls everything that enters and exits the Islamist Hamas-ruled Gaza Strip, but local authorities in Khan Younis said they were working with the Red Cross and Red Crescent to deliver the donated blood to Lebanon.
First published: 19:46, 08.05.20