The IDF cleared for publication on Wednesday morning that Captain (res.) Lior Sivan, 32, from Beit Shemesh, fell on Tuesday during a battle in the southern Gaza Strip.
Sivan served as a combat officer in the 363rd Battalion of the 10th Brigade.
In addition, a soldier from the Givati Brigade was seriously injured in battle in the southern Gaza Strip.
The soldier was evacuated to hospital for medical treatment, and his family was notified.
On Tuesday night, the Islamic Jihad continued using psychological terror, similar to the methods of Hamas, and released a video showing two Israeli hostages who appear to be in good condition.
The hostages in the video are Elad Katzir and Gadi Moses, who were kidnapped on October 7 from Kibbutz Nir Oz. In the video, the two appeal for action to be taken to secure their release.
Moses, 79, was documented as he was kidnapped by Hamas terrorists from his home. His partner, Efrat Katz, was murdered on October 7.
Katzir, 47, is the son of Hanna who was kidnapped and released as part of the first batch of the recent deal to release hostages. His father, Rami, was murdered by the terrorists.