A drone attack from Lebanon injured an Israeli officer and a soldier near Israel’s northern border early Monday after an exchange of fire overnight, Israel’s military said, as the country remains on alert for the major retaliation promised by its adversaries after senior Hamas and Hezbollah officials were killed last week.

Meanwhile, diplomatic efforts continued over the weekend in an attempt to defuse regional tensions and avert an all-out war beyond the current conflict between Israel and Hamas in Gaza, where more than 2 million Palestinians remain under Israeli siege and bombardment.

Hezbollah claimed responsibility for Monday’s strike, saying it targeted an Israeli military base.