Palestinians lead an apparently captured and injured Israeli man in Khan Yunis in the southern Gaza Strip, on October 7, 2023. AFP
Many of the missing foreigners were at an electronic music festival in the southern Israeli desert, at which scores of revellers were massacred.
Here is what we know so far:
Thailand: 12 dead, 11 hostages
Twelve Thai laborers were killed, eight were wounded and 11 were taken captive, foreign ministry spokeswoman Kanchana Patarachoke said Monday.
Labour Minister Phiphat Ratchakitprakarn said there were around 5,000 Thai laborers working in the areas hit by fighting who were being moved to safety.
Nepal: 10 dead
Ten citizens of Nepal were killed in Kibbutz Alumim, one of the flashpoints of the Hamas assault, the Himalayan Republic's embassy in Tel Aviv said on Sunday.
Four others were being treated in hospital while a search was underway for a fifth person, the embassy added.
Kibbutz Alumim was hosting 17 students at the time of the attack.
US: 9 dead, others missing
The United States confirmed Monday the deaths of nine US citizens and said others were still unaccounted for.
"At this time, we can confirm the deaths of nine US citizens," State Department spokesman Matthew Miller said, adding that the US was working with Israel to locate those still missing.
Ukraine: 2 dead
Two Ukrainian women who had been living in Israel for years were killed, Ukraine's foreign ministry spokesman Oleg Nikolenko said on Sunday.
France: 2 dead, 14 missing
Two French people have been killed in "Hamas's attacks against Israel", the French government said.
A 12-year-old is among 14 of its nationals missing after Hamas launched deadly raids into Israel, the French foreign ministry said calling the situation "worrying".
"Based on the information we have, we consider it highly likely that some of them have been abducted", the ministry said in a statement, adding that "this number is still subject to change".
Russia: 1 dead, 4 missing
At least one Russian has been killed and four others are missing, the Russian embassy in Tel Aviv announced on Monday, quoted by the Russian news agencies.
UK: 1 dead, 1 missing
Israel's ambassador to Britain said there was one 26-year-old British citizen missing, without naming the person.
A British man who was serving in the Israeli army, Nathanel Young, 20, also died in fighting with Hamas, his family said on Sunday.
Canada: reports of 1 dead, 2 missing
The Canadian government said on Sunday that it was trying to confirm reports that one Canadian had died and two others were missing.
Cambodia: 1 dead
Cambodia's Prime Minister Hun Manet said one Cambodian student was killed.
Germany: several captives
Several dual German-Israeli nationals were captive, a German foreign ministry source said Sunday.
The mother of 22-year-old Shani Louk told news outlet Der Spiegel that she recognized her daughter in videos circulating online of a half-naked woman lying face down in the back of a pick-up truck in Gaza with armed men seated around her.
Ricarda Louk told Spiegel that her daughter had been at the music festival.
Brazil: 3 missing, one injured
Brazil's foreign ministry said on Sunday that three dual Brazilian-Israeli nationals were missing after attending the festival and a fourth was being treated in hospital.
Paraguay: 2 missing
Two Paraguayan nationals who had been living in Israel are missing, Paraguay's government said, without giving details.
Mexico: 2 captives
Mexico's Foreign Minister Alicia Barcena wrote on X, formerly Twitter, that two Mexicans, one man and one woman, had been captive, without giving further details.
Colombia: 2 captives
Two Colombians who were at the Supernova festival are missing, Israel's ambassador to Colombia said on X.
The Colombian government confirmed that two Colombians were at the rave and said it was trying to help locate them.
Panama: 1 missing
Panama's government said one of its nationals, Daryelis Denises Saez Batista, was missing.
Ireland: 1 missing
An Irish-Israeli woman has been confirmed missing by the Irish government.
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