Two people were killed in a town in northern Israel that was hit by rocket fire from Hezbollah in Lebanon on Wednesday, Israeli authorities said.
Israel's ambulance service said that a man and a woman had been killed in the town of Kirya Shmona, Reuters reported.
The military said about 20 projectiles had been launched from Lebanon in the barrage.
Rocket sirens sounded constantly across northern Israel on Wednesday, including in the major port city of Haifa, following heavy fire from Lebanon. Israel's military said about 40 projectiles were launched in one barrage at Haifa, some of which were intercepted while others fell in the area.
This came as Hezbollah said on Wednesday its fighters had pushed back advancing Israeli troops in clashes along the length of the border.
The group said it had fired several rocket salvos at Israeli troops near the village of Labbouneh in the western part of the border area, close to the Mediterranean coast, and had managed to push them back.
Further east, it said it had attacked Israeli soldiers in the village of Maroun el-Ras and fired missile barrages at Israeli forces advancing towards the twin border villages of Mays al-Jabal and Mouhaybib.
Israel meanwhile launched airstrikes including at targets far from the border combat zone. The Lebanese health ministry said four people were killed and 10 wounded by a strike that hit the town of Wardaniyeh, north of Sidon along the coast.
The escalation in Lebanon, after a year of war between Israel and Hamas in Gaza, has raised fears of a wider Middle East conflict that could suck in Iran and Israel's superpower ally the United States.