Throughout the day, sirens sounded in the South, including in Nir Oz.
Despite being founded to maintain peace and security on the border between Israel and Lebanon, UNIFIL has failed to rein in violence from Hezbollah
The strike killed seven staff of the aid group World Central Kitchen (WCK), including citizens of Australia, Britain, and Poland, and a dual citizen of the United States and Canada.
Two security sources had earlier told Reuters the observers were wounded in an Israeli strike outside the border town of Rmeish. The Israeli military denied involvement in the incident.
The IDF denied hitting a vehicle carrying United Nations observers outside the southern Lebanese border town of Rmeish.
Lebanese Prime Minister Najib Mikati said Lebanese officials would "continue to work towards reaching a ceasefire."
The man wounded was an Indonesian soldier, a security source said. A vehicle was damaged, UNIFIL said.