It was the first attack by Israel on the Lebanese capital in weeks and could complicate efforts by the United States and Iran to agree to a peace deal to end the war in Iran.

The Israeli army intensified strikes in southern Lebanon on Monday, as two far-right Israeli ministers called for escalation including attacks on Lebanese capital Beirut.

Clashes between the Israeli military and Lebanon's Iranian-backed group Hezbollah flared Tuesday along a strategic river in Lebanon as Israeli troops...