Israel expanded its largest military operation in Lebanon in 25 years as Hezbollah escalated attacks and regional tensions rise amid U.S.-Iran negotiations.

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.

By Rami Ayyub and Maya GebeilyJERUSALEM/BEIRUT, May 29 (Reuters) - Israeli forces have advanced to positions north of Lebanon's Litani River, Prime Minister Benjamin Netanyahu…