The Israel Defense Forces tells Fox News that its infantry forces and tanks entered the Gaza Strip on Friday to conduct localized raids.

Fox News' Trey Yingst reported the military action was not the much-anticipated ground invasion by the Israeli military of the Gaza Strip.

The development comes as the militant group Hezbollah took responsibility for targeting Israeli military posts with small-arms fire along the country's border with Lebanon, which the Israelis responded to with artillery strikes. 

More than 1,300 Israelis were killed and thousands more wounded when Hamas launched a surprise terror attack on the Jewish state Saturday. As many as 150 people are believed to have been taken captive by terrorists and held in Gaza, according to Israeli authorities.

LIVE UPDATES: ISRAEL AT WAR WITH HAMAS 

Israel tanks near Gaza Strip

Israeli tanks head towards the Gaza Strip border in southern Israel on Thursday. (AP/Ohad Zwigenberg)

Israel has called up some 360,000 military reservists to respond to the Hamas-led terror campaign. Those forces have gathered on Israel's border with Gaza ahead of a possible full-scale invasion to reclaim the hostages and eliminate Hamas terrorists.

Israel has warned the 1.1 million people living in the north of Gaza to evacuate the area within 24 hours as a "humanitarian step in order to minimize civilian casualties" ahead of the military's response to Hamas' terrorist attacks.

ISRAEL WARNS CIVILIANS IN NORTHERN GAZA TO EVACUATE

Israeli tanks

Israeli tanks leave Kfar Aza in southern Israel after inspecting the area on the border with the Gaza Strip on Tuesday. (Jack Guez/AFP via Getty Images)

IDF spokesman Jonathan Conricus shared the message he said was sent to citizens in Gaza on X, formerly Twitter, on Friday morning.

"The IDF calls for the evacuation of all civilians from Gaza City from their homes southwards for their own safety and protection and to move to the area south of the Wadi Gaza, the river Gaza, as shown on the map," Conricus said.

He explained that telling people to move south of the river makes the directions clear and understandable for everybody, regardless of whether they have a map or not.

Israel soldiers Lebanon border

Israeli soldiers take positions alongside the border wall and fence with Lebanon as seen from the Lebanese side in Marwaheen, Lebanon, on Friday. (AP/Hassan Ammar)

CLICK HERE TO GET THE FOX NEWS APP 

Conricus said the evacuation order is for safety purposes, adding that civilians will not be able to return to Gaza City until another announcement clearing the area is made. He also said to not approach the area of the security fence with Israel.

Fox News' Chris Pandolfo and Elizabeth Pritchett contributed to this report.