The Israeli army and Lebanese Shiite Hezbollah militia fighters have exchanged fire across the border.
An Israeli army spokesman said there was “ongoing fighting” in the Mount Dov area, part of the Israeli-occupied Syrian Golan Heights.
He said there were no Israeli victims. There have been no official news about Lebanon’s injuries.
The area has been tense for days after a Hezbollah fighter was killed in an alleged Israeli airstrike in Syria.
Israel, which has neither confirmed nor denied that it carried out the attack in the early hours of last Monday, warned Hezbollah not to retaliate.
The Israeli army said that “three or four” militants had crossed into Israeli territory but had fled after Israeli forces shot them.
Israel and Hezbollah are staunch enemies who fought a month-long war in 2006 after Hezbollah killed eight Israeli soldiers and kidnapped two in a cross-border raid.
The resulting conflict killed some 1,191 people, mostly civilians, in Lebanon, and 121 soldiers and 44 civilians in Israel.