The son of Israel's former army chief Gadi Eisenkot, who is currently a minister in the country's war cabinet, has been killed in Gaza, the military says.
It says 25-year-old Major Gal Eisenkot died in northern Gaza on Thursday.
Israeli media say Maj Eisenkot was badly injured after a tunnel shaft exploded and later died in hospital.
PM Benjamin Netanyahu said he and his wife were "broken-hearted", and that Gal Eisenkot was a "true hero".
In his statement, Mr Netanyahu added: "Our heroes have not fallen in vain. We will continue to fight until victory."
Gadi Eisenkot, 63, is a battle-hardened retired general who served as Israel's chief of the general staff from 2015-19.
A lawmaker from the National Unity party, he is also a current member of Mr Netanyahu's emergency government set up after Hamas attacked Israel on 7 October, killing about 1,200 people and taking about 240 hostages.
Israel has responded by bombarding Gaza from the air and launching a ground invasion. Hamas officials in Gaza say it has killed more than 17,000 people, mainly civilians, with thousands more missing under rubble.
Mr Eisenkot was informed about his son's injuries as he was visiting the Israel Defense Forces' (IDF) Southern Command, local media reported.
A number of Israeli government officials and lawmakers also sent their condolences to the Eisenkot family.
Opposition leader Yair Lapid posted a photo of Gal and Gadi Eisenkot in military uniforms hugging each other.
"This photo. This hug. A father and his son. Both in uniform. Both soldiers in this country," Mr Lapid wrote. "They both respond to the call and show up when they're needed, doing whatever they need to do. The fate of an entire nation in one hug."
The IDF also said that another soldier - named as Sgt Maj Jonathan David Deitch, 34 - was killed in southern Gaza on Thursday.
Latest Stories
-
Ghana Health Service opens vacancies for 204 doctors, 25 dentists
3 mins -
Domestic tourism on the rebound with 1.4m visits to attraction sites in 2023 – GTA
38 mins -
Government working hard to complete Tema General Hospital project – Dr Okoe Boye
49 mins -
Ipswich Town seal Premier League promotion after 22 years absence
53 mins -
Accord journalists the respect due them – Opare Gyan
54 mins -
EPL: Arsenal beat Bournemouth to go four points clear of Man City
1 hour -
Cecilia Dapaah’s case: What’s happening now is a clear indication of cover-up – Amaliba
1 hour -
I felt rejected by Ghanaians – AY Poyoo
1 hour -
Terrorist cell of five Daesh supporters dismantled in Essaouira
2 hours -
My former manager deleted my songs from streaming platforms – AY Poyoo
2 hours -
Afronita and Abigail get standing ovation at Britain’s Got Talent
2 hours -
Accused in murder of a military officer in Kasoa remanded
2 hours -
OSP cleared Cecilia Dapaah of corruption after investigations, not AG’s office – Godfred Dame
3 hours -
OSP only gave EOCO a narrow remit to investigate money laundering – A-G
3 hours -
Ghana’s Osman Bukari wins second successive Serbian Super League title with Red Star
3 hours