Names scheduled to participate in the Web Summit cancelled their attendance in reaction to the CEO's criticism of Israel.
In Saudi Arabia, the mercurial crown prince kept him waiting until dawn.
US President Joe Biden abruptly cancelled a domestic political trip to meet with his national security team Monday as he weighed an invitation to go to Israel to show support as it wages war against Hamas.
The Hamas attack has left Middle Eastern nations taking different stances, with UAE and Bahrain being more careful with their tone, while Kuwait, Oman and Qatar blame Israel's policies for the violence.
Israel on Friday gave Palestinians 24 hours to leave Gaza City ahead of an expected ground offensive in retaliation against Hamas for the deadliest attack in Israeli history.
Hundreds of Hollywood celebrities signed an open letter Thursday condemning the "barbaric acts" of Hamas fighters who murdered and abducted Israeli civilians in a shocking weekend assault.
Like clockwork, every 30 seconds Israeli artillery goes into action against a barely visible target somewhere in the Hamas-ruled Gaza Strip.
In its bloody assault on Israel, Hamas was aiming to break a stalemate in Gaza, analysts say, but with its neighbour now determined to eradicate the Islamist group, it may have made a fatal mistake.
"Operation Ajay" will see chartered flights being used to repatriate Indian citizens from Israel as the region witnesses a flare-up in violence following Hamas' surprise attack last week.
Arab foreign ministers on Wednesday denounced Israel's siege of Gaza following the shock attack by Palestinian militants on Israel, demanding that aid be "immediately" allowed to enter the blockaded enclave.
Military supplies have started flowing into Israel, which already receives about $3.8 billion from the U.S. in military aid. The U.S. military support to Israel could be crucial in preventing other major players in the region from getting involved in the war, says Vivek Mishra, a fellow with Observer Research Foundation's Strategic Studies Program.
India's defense forces will study possible intelligence gaps that the Hamas group may have exploited to carry out last week's attack that caught Israel by surprise.
More than 30 Harvard student organizations posted a statement on Facebook over the weekend saying Israel is "entirely responsible for all unfolding violence."
The U.S. President said 14 American citizens were killed in the attacks and others are still being held by Hamas.
Israel on paper enjoys vast numerical superiority over Palestinian militant group Hamas in terms of forces and hardware but the numbers mask a picture that is far more troubling for the Israeli government, analysts say.
The Indian Prime Minister wrote on Twitter about having a phone conversation with his Israeli counterpart, and said India "strongly and unequivocally" condemns all forms of terrorism.
Prime Minister Benjamin Netanyahu has warned Israel's military campaign following Saturday's surprise mass onslaught was only the start of a sustained war to destroy Hamas and "change the Middle East".
Summers, who is Harvard's president emeritus, said he expects the university to condemn the "terrorist attacks" by Hamas.
Naro Gilon said India's support was significant due to its global influence and long fight against terrorism.
An Egyptian policeman shot dead two Israeli tourists and their Egyptian guide Sunday, local media and Israeli authorities said, as war raged for a second day between Israel and Palestinian militants.
President Joe Biden pledged "rock solid" support for Israel on Saturday in the face of what he described as "terrorist assaults" by Palestinian militant group Hamas, with an announcement on US military assistance expected imminently.
Barrages of rockets were fired at Israel from the blockaded Gaza Strip at dawn on Saturday as militants from the Palestinian enclave infiltrated Israel, with at least one person killed, the army and medics said.