A local official and state media in Lebanon said an Israeli strike on a southern village on Sunday killed several people from the same family, with Hezbollah announcing rocket fire in retaliation.

Israel and Lebanon's Hezbollah resistance movement have exchanged regular cross-border fire since Israel declared war on Gaza on October 7. 

Fighting has intensified in recent weeks, with Israel striking deeper into Lebanese territory, while Hezbollah has stepped up its missile and drone attacks on military positions in northern Israel.

Lebanon's state-run National News Agency said the Israeli strike in Mais al-Jabal killed "four people from a single family".

It identified them as a man, a woman and their children aged 12 and 21, and said two other people were wounded.

Hezbollah in a statement said it fired "dozens of Katyusha and Falaq rockets" at Kiryat Shmona in northern Israel "in response to the horrific crime that the Israeli enemy committed in Mais al-Jabal".