Israeli Defense Minister Yoav Gallant, in a special discussion of the Foreign Affairs and Defense Committee, said Israel is "under attack from seven different sectors: Gaza, Lebanon, Syria, Judea and Samaria, Iraq, Yemen and Iran."

"We have already reacted and acted in six of them. And I say this in the most explicit way: Anyone who acts against us is a potential target," Gallant warned. "There is no immunity for anyone."

-ABC News' Dana Savir

The Israel Defense Forces said its soldiers have discovered “evidence connecting Hamas’ terrorist activities” to northern Gaza’s Indonesian Hospital.

The IDF said a white Toyota truck “of the same type used by Hamas” in the Oct. 7 attack was found “in the inner compound of the hospital,” “along with additional weapons.”

The IDF also said that in the hospital’s inner compound was a Toyota Corolla belonging to the family of Samer Talalka, who was one of the three Israeli hostages held in Gaza who was mistakenly killed by the IDF. Bloodstains belonging to another hostage were found in the car, the IDF said.

“The finding of the vehicle directly links the hospital to the brutal events of October 7th,” the IDF said.

-ABC News’ Jordana Miller

Families of hostages reportedly heckled Israeli Prime Minister Benjamin Netanyahu as he gave a speech in Parliament on Monday, according to Reuters.

The families, sitting in the chamber, held posters of their loved ones and interrupted Netanyahu as he spoke, per Reuters.

Netanyahu said in his address that military pressure is needed to free the remaining people being held hostage by Hamas, Reuters reported.

Lebanon has carried out a number of launches toward several locations in northern Israel over the last few hours, according to the Israel Defense Forces.

“A short while ago,” Israeli tanks hit Hezbollah infrastructure sites in Lebanon "used for directing terrorist activity," according to the IDF.

-ABC News’ Jordana Miller

The Israel Defense Forces has published the findings of its investigation into the accidental killing of three hostages by IDF soldiers in the Shejaiya area of Gaza on Dec. 15.

The IDF Chief of the General Staff concluded that "the IDF failed in its mission to rescue" them and "the entire chain of command feels responsible."

The three hostages -- 28-year-old Yotam Haim, 26-year-old Alon Shamriz and 22-year-old Samer Talalka -- were carrying a stick with a white cloth, and the IDF initially said its forces "mistakenly identified" the men as a threat. Soldiers opened fire, killing two of the men.

The third hostage, who was injured, ran back into the building where all three had emerged from, and someone cried "help" in Hebrew. The battalion commander ordered his troops to stop firing, but, despite the order, another burst was fired, killing the third hostage, according to the IDF.

The investigation “revealed that the command ranks had information about the presence of hostages in the Shejaiya area and even took actions to prevent strikes on locations suspected of having hostages inside," the findings said.

But the probe also revealed that "IDF soldiers involved in the incident experienced complex combat situations in the days preceding the incident and were in a state of high alert for a threat," the findings said. "During the battles, they encountered deceptions by the enemy and attempts to draw them into pits and buildings rigged with explosives."

Days before Dec. 15, IDF soldiers heard cries for help in Hebrew.

"The forces interpreted this as a terrorist deception attempt," the investigation said.

“Some of the forces heard the cries but suspected it was an attempt by the terrorists to draw the forces inside the building to harm them, as had happened in the past," the investigation said.

-ABC News’ Jordana Miller