Israeli forces and Hezbollah militants in Lebanon traded cross-border strikes on Wednesday, fueling concerns about a wider regional conflagration as negotiators struggle to broker a cease-fire in the Gaza Strip.

Israel said that it had struck weapons storage facilities used by Hezbollah, the powerful Iranian-backed militia, in eastern Lebanon for the second time this week. The overnight airstrikes, close to the Syrian border, killed at least one person and injured 30 others, including children, Lebanon’s Health Ministry said in a statement.

Hezbollah said that in response it had targeted an Israeli military base in the Israeli-controlled Golan Heights.

Israel’s military said that dozens of rockets had crossed into the area from Lebanon, but that they had struck a civilian neighborhood, not near a military target, damaging two houses in Katzrin, a town of about 8,000 people in the region. Magen David Adom, the Israeli emergency medical service, said a 30-year-old man in Katzrin had been treated for shrapnel wounds.

“Attacks against our civilians will not go unanswered,” said an Israeli military spokesman, Lt. Col. Nadav Shoshani.

The cross-border strikes highlighted how months of diplomatic efforts, led in part by the United States, have failed to either broker a stop to the war in Gaza between Israel and Hamas, or ease hostilities along the Lebanese border. Israel and Hezbollah have dramatically increased the pace of their attacks since October, when Hezbollah began firing into Israel, saying it was acting in solidarity with Hamas and the people of Gaza.