Israel’s ground incursion into Lebanon to battle Hezbollah militants left eight Israeli soldiers dead on Wednesday, while the region braced for further escalation as Israel vowed to retaliate for Iran’s ballistic missile attack a day earlier.

The Israeli military said seven soldiers were killed in two separate attacks, without elaborating. The assaults were among the deadliest against Israeli forces in months.

Another seven troops, including a combat medic, were wounded. Earlier, the military had announced that a 22-year-old captain in a commando brigade was killed in Lebanon, the first Israeli combat death since the start of the incursion.

The announcements came on the eve of Rosh Hashana, the Jewish new year.