The terror group is also purportedly closely monitoring the movements of Israeli citizens in the communities bordering Gaza, the London-based Arabic daily newspaper Al-Hayat reported on Tuesday. This included the Black Arrow, Givat Hapa'amon and Nizmit sites, an IDF spokesperson said.
Amid increased tension on both its northern and southern borders, Israel has deployed Iron Dome batteries in the Gush Dan region in central Israel, it was cleared for publication on Tuesday.
The economic heart of the country, Tel Aviv has not been targeted by a Gazan rocket since the 2014 Gaza War.
The military confirmed on Monday the anti-missile systems were installed in "central Israel", but would not specify their location.
The system, created to intercept short-range rockets, has defended against hundreds of rockets fired by Palestinian militants from Gaza during Israel's military campaign there in 2014. The terror group is known to have Katyusha rockets, which could reach the densely populated area.
Coordinator of Israeli Government Activities in the Occupied Territories Yoav Mordechai announced yesterday that Israel is expecting Islamic Jihad to retaliate.
Jason Greenblatt, US President Donald Trump's special representative for global negotiations, wrote on Twitter on Tuesday that "extremist statements & provocation vs. Israel by Islamic Jihad significantly harm the people of Gaza & are very risky".
"We are aware of the plot being waged by Palestinian Islamic Jihad against Israel".
PIJ responded to the IDF's announcement that it was keeping the bodies of five terrorists found in the tunnel by saying that Israel "will not be able to bargain over our fighters". The freedom tunnel is not the only tunnel owned by the Islamic Jihad.
Prime Minister Benjamin Netanyahu warned Gaza militants Sunday against attacks as the Islamic Jihad group vowed revenge for the demolition of one of its tunnels that crossed into Israel.
In his YouTube message, Mordechai referred to those reconciliation efforts, saying Islamic Jihad was "playing with fire" and potentially threatening the talks as well as the safety of Gaza Strip residents.