This is CNN breaking news.

We start with breaking news tonight.

Israeli forces are now entering Lebanon.

They are carrying out what they call a limited ground operation. It is a major

escalation, one that is renewing fears that Iran could now be poised to step in. The Pentagon

tonight said to deploy additional U.S. troops and fighter jets all to the region in response.

So far we know that the IDF says it's targeting Hezbollah in southern Lebanon.

The announcement comes just hours

after Israeli raids and artillery fire

was reported across the border.

Air strikes also hitting inside of Beirut city limits for the first time since October 7th.

Just a short time ago, we saw a projectile over the night sky in Tel Aviv.

Now it's unclear where it came from. The ground operation

follows a rapid escalation in fighting over the past couple of weeks, along with

massive setbacks for Iran-backed Hezbollah. The group's communication took a hit after thousands of

their pagers and walkie-talkies exploded. Israel has also taken out several Hezbollah

leaders including the man at the very top, Kassan Niswala.

CNN is on the ground tonight in the region.

Senior International Correspondent Ben Weedeman is in Beirut,

and International Correspondent Jeremy Diamond is in Beirut. An international correspondent Jeremy Diamond is in northern

Israel. Ben, let me begin with you. This is a limited ground operation into

southern Lebanon. It's happening as we speak. What is the situation on the ground right now?

...