The Lebanese militant group captured an advanced Israeli anti-tank missile in the 2006 war, and its ally, Iran, reverse-engineered it, Israeli officials say.

Israel and Lebanon's Hezbollah traded deadly blows on Thursday as their war raged on despite signs of progress in U.S. ceasefire efforts, with some of the heaviest airstrikes yet on Beirut's southern suburbs and rockets flying into Israel.

For years, Israelis were told that in the next war with Hezbollah, the Lebanese militia would fire thousands of rockets and missiles a day, overwhelming their air defenses, causing blackouts, death and destruction.