The Israeli army said it was reviewing a strike that harmed Lebanese troops in south Lebanon, an apparent reference to Israeli shelling that killed a Lebanese soldier — a sergeant, and wounded three others the previous day, Reuters reports.

“The Lebanese Armed Forces were not the target of the strike. The IDF expresses regret over the incident. The incident is under review,” the Israeli military said in a statement.

The Israeli army said its soldiers had acted in “self-defence to eliminate an imminent threat that had been identified from Lebanon” from a “known launch area and observation point” used by Hezbollah.

The UN peacekeeping force in Lebanon UNIFIL noted in a statement on Tuesday it was the first Lebanese army soldier killed during the hostilities, and that the Lebanese army had not engaged in conflict with Israel.