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

Hamas and the Islamic Jihad have rejected an Egyptian proposal that they relinquish power in the Gaza Strip in return for a permanent cease-fire, an Egyptian security source confirmed to ABC News.

Egypt proposed a "vision,” also backed by Qatari mediators, that would involve a cease-fire in exchange for the release of more hostages and lead to a broader agreement involving a permanent cease-fire, along with an overhaul of leadership in Gaza, the Egyptian security source said. However, Hamas and the Islamic Jihad rejected the proposal, the source said.

The Israeli War Cabinet was planning on meeting to discuss this proposal Monday evening local time. It is unclear if they will still discuss the proposal.

-ABC News’ Ayat Al-Tawy and Jordana Miller

At least 68 people were killed by an Israeli airstrike on a refugee camp in the Gaza Strip on Sunday night, according to Gaza's Hamas-run Ministry of Health.

The strike hit the Al-Maghazi refugee camp in central Gaza, east of Deir al-Balah. At least 12 women and seven children were among the dead, according to The Associated Press, which cited early hospital figures.

When asked for comment, the Israel Defense Forces told ABC News on Monday: "The IDF received reports of an incident in the Maghazi camp and is reviewing the incident. Despite the challenges posed by Hamas terrorists operating within civilian areas in Gaza, the IDF is committed to international law including taking feasible steps to minimize harm to civilians."

-ABC News' Jordana Miller, Tomek Rolski and Morgan Winsor

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