Lebanon claims parts of Israel's gas fields are in Lebanon's exclusive economic zone.
Nasrallah also denied claims that Hezbollah has cells in Latin America, while stressing his support for Venezuela.
The terrorist was arrested and transferred for interrogation by security forces.
Opening a second front against Israel is an old Hezbollah dream, and now that the terror group's fighters are back from the Syrian front, Nasrallah et al are trying to revive it.
Hariri also said Lebanon would still be neutral in regional conflicts, while furthering ties with other countries and the European Union.
Nevertheless, the United States applauded the development.
"He and his people put great effort into the surprise weapon of invasive tunnels, including their excavation."
“You saw what happened when one rocket from Gaza hit Ashkelon. Imagine if rockets started landing on Tel Aviv."
Hezbollah’s Al Manar identified the man who crossed the Israeli border into Lebanon on Monday as U.S. citizen Colin Emery.
The new tunnel, like the rest of the exposed Hezbollah terror tunnels, has been booby-trapped, so that anyone entering from the other side would be risking their lives.
"In falsely seeing ourselves as a force for what ails the Middle East, we were timid about asserting ourselves when the times — and our partners — demanded it," Pompeo said.
Hezbollah and the Iranian banks are being sued for a total of $50 million in compensatory damages, plus unspecified punitive damages.
The ‘Gates of Fire’ battalion will serve under the IDF ‘Baram’ Brigade that guards the region.
“It’s not hard to imagine what would have happened if hundreds of Hezbollah operatives had entered [Israel from Lebanon] through underground attack tunnels."
The IDF holds the Lebanese government responsible for the digging of the tunnels and the ramifications of those activities.
An arsenal of Iranian Fajr-5 missiles was reportedly being stored in at least one of the weapons warehouses..
"Each tunnel is different from the other, some were carved into the rock, others are made of concrete, some go down into our territory, others rise up."
Even verification of the existence of the cross-border attack tunnels infiltrating Israeli territory -- a direction violation -- was insufficient.
"If Hezbollah will have the arrogance to attack Israel, we will bury it in the rubble of Lebanon."
PM-designate Hariri said the international community must "curb this escalation in the interest in the respect for the Blue Line and the full implementation of Resolution 1701."
"The time has come for the Security Council to act using all means against the Hezbollah terror infrastructure."
Israel demands that both UNIFIL and the Lebanese government respond to the fact that Hezbollah violated Resolution 1701 with its tunnels.
The tunnel, like the first three, has been booby-trapped by the IDF and anyone entering it on the Lebanese side risks his life.
"I estimate that Hezbollah understands that we are well prepared for any attempt on its part to respond."
The Americans distinguish between Lebanon and Hezbollah, which is why they agreed on sanctions against the terror organization.