Sirens sounded at around 1:10 a.m. Sunday morning, warning over 70 communities in northern Israel of incoming rockets.
Among the communities in the list were Yokne'am, Nazareth, Afula, communities in the Lower Galilee and Jezreel Valley, and the Carmel area.
Initial reports claimed that Hezbollah fired its Fajr-5 missile, for the first time since 2006. One injury was reported. Most of the rockets were intercepted by Israel's missile defense systems.
Hezbollah claimed responsibility for the barrage on the north, saying, "We fired rockets at the air force base in Ramat David in response to the Israeli attacks."
Power outages are reported in Afula and nearby communities.
The IDF reported: "Following the sirens that sounded a short while ago in the Jezreel Valley area, approximately 10 projectiles were identified crossing from Lebanon into Israeli territory. Most of the projectiles were intercepted and a fallen projectile was identified in the area. The incident is under review."
Magen David Adom reported that a 60-year-old man was very lightly injured by a fragment of rocket which was intercepted near a village in the Lower Galilee.
Later, around 4:00 a.m., sirens warning of a suspected infiltration of a hostile aircraft were sounded in the southern Golan Heights.
The IDF Spokesperson's Unit said, "Following the sirens that sounded a short while ago in the area of the southern Golan Heights, multiple suspicious aerial targets approached Israel from the direction of Iraq. The targets were intercepted and no injuries were reported."
"The targets did not cross into Israeli territory, sirens sounded according to protocol," added the IDF.
It also said that sirens that sounded at 3:37 a.m. and 3:47 a.m. in the area of Dovev were a false identification.
Around 5:00 a.m., sirens were again sounded in the Jezreel Valley. During this barrage, a cattle barn was directly hit by a rocket, killing several cows and causing damage to property.
The Israel Police said that reports were received of several explosions in several locations.
The IDF said that 24 rockets were launched in three volleys into the Ramat David area and the Jezreel Valley - all of them were intercepted.
Three people were wounded from a direct hit in Kiryat Bialik.
Magen David Adom paramedics are treating several people for shock, as well as several people who were injured by shrapnel on their way to shelter. MDA stated that a 70 year- old-man is in moderate condition, another 70-year-old man was lightly wounded, and a 16-year-old girl was lightly wounded, The wounded were evacuated to Rambam Medical Center in Hospital.
The IDF stated that Following the sirens that sounded Sunday morning between 6:24 and 6:32 and between 6:52 and 07:00 in numerous areas in northern Israel, approximately 85 projectiles were identified crossing from Lebanon into Israeli territory. Some of the projectiles were intercepted, and fallen projectiles were identified in the areas of Kiryat Bialik, Tsur Shalom, and Moreshet. Israel Fire and Rescue Services are currently operating to extinguish numerous fires that were ignited in the area.
Following a situational assessment, it was determined that as Sunday morning at 6:00 a.m., changes will be made to the Home Front Command’s defensive guidelines.
The changes are relevant for the following areas: northern Golan Heights, Confrontation Line, southern Golan Heights, Upper Galilee, Central Galilee, Lower Galilee, the Haifa Bay (HaMifratz), and the Valleys (HaAmakim), in accordance with the situational assessment.
The communities along the confrontation line, in the northern Golan Heights, and in the southern Golan Heights (except for communities in Emek Hayarden), are also subject to the guidelines that have been set by the IDF Northern Command.
Around 6:30 a.m., sirens were also heard in Acre and in the Krayot region. At 6:35a.m., sirens sounded in Be'er Ora, near Eilat.
The IDF reported: "Following the hostile aircraft infiltration sirens that sounded in the Arava area, a suspicious aerial target was identified approaching Israeli territory from the east. The target was intercepted and no injuries were reported."
"The target did not cross into Israeli territory. Sirens were sounded in accordance with protocol."
Prime Minister Benjamin Netanyahu held a security consultation overnight, attended by ministers and senior defense echelon officials. Israeli airspace is closed from Hadera northwards through Tuesday.
The Diplomatic-Security Cabinet will meet Sunday evening at 5:30 p.m. in Tel Aviv, to discuss the recent developments.
At around 12:40 a.m. Sunday morning, the IDF announced the completion of its latest series of strikes in Lebanon.
"Since the afternoon, with the direction of the IDF Intelligence Directorate, the IAF struck approximately 290 targets, including thousands of launcher barrels, alongside additional terrorist infrastructure in multiple areas in southern Lebanon," an IDF statement read.
"Over the past few hours, in an additional series of strikes, the IDF struck approximately 110 Hezbollah terrorist targets, including launchers and terrorist infrastructure in multiple areas in southern Lebanon.
"The IDF will continue operating to dismantle and degrade Hezbollah's capabilities and terrorist infrastructure."