Hezbollah has started moving precision-guided missiles as Israel threatens to launch an attack on Lebanon following the weekend strike that killed 12 children in the Israeli-occupied Golan Heights.

An official with the Lebanese group told The Associated Press that Hezbollah’s stance has not changed and that the Iran-backed group does not want a full-blown war with Israel, but if war breaks out it will fight without limits.

Israel wants to hurt Hezbollah but not drag the Middle East into all-out war, the Times of Israel has quoted two Israeli officials as saying, as Lebanon braces for retaliation after a rocket strike that Israel blamed on Hezbollah killed 12 children and teens in the Golan Heights on Saturday.

Two other Israeli officials said Israel is preparing for the possibility of a few days of fighting.

Lebanon’s Druze leader Walid Jumblat has blasted as “lies” Israel’s accusations that Hezbollah was behind the rocket that killed 12 youngsters in the Druze village of Majdal Shams in the Israeli-annexed Golan Heights.

“Where did they bring these proofs and arguments from?” Jumblat added, in an interview on Al-Jazeera television.

The Middle East braced for a potential flare-up in violence after Israeli authorities said a rocket from Lebanon struck a soccer field in the Israeli-controlled Golan Heights, killing 12 children and teens in what the military called the deadliest attack on civilians since Oct. 7. It raised fears of a broader regional war between Israel and Hezbollah, which in a rare move denied it was responsible.

The White House National Security Council said it was speaking with Israeli and Lebanese counterparts and working on a diplomatic solution to "end all attacks once and for all" in the border area between Israel and Lebanon.

Hundreds gathered Monday in the Israeli-annexed Golan Heights town of Majdal Shams for the funeral of the last of 12 youths killed by rocket fire.

Eleven-year-old Guevara Ibrahim was initially reported missing after Saturday's strike that hit a football pitch in the Druze Arab town, but has later been confirmed dead.

A flurry of diplomatic activity is underway to contain an expected Israeli response against Hezbollah, Lebanon's top diplomat said, after an attack blamed on the group killed civilians in the annexed Golan Heights.

On Sunday, Israeli Defense Minister Yoav Gallant had vowed to "hit the enemy hard" after rocket fire killed 12 minors, raisings fears the war in Gaza could spread.

Airlines suspended flights to Lebanon on Monday as diplomatic efforts were underway to contain soaring tensions between Hezbollah and Israel after deadly rocket fire in the annexed Golan Heights.

Several airlines including Lufthansa, Air France and Transavia announced Monday the suspension of their Beirut lines.

Monday saw a flurry of diplomatic activity, as caretaker Prime Minister Najib Mikati held "intensive diplomatic contacts," including a call with British Foreign Secretary David Lammy, who “renewed the call on all parties to exercise restraint to prevent escalation,” Mikati’s office said in a statement.

Lammy posted on social media site X that he had called Mikati “to express my concern at escalating tension and welcomed the Government of Lebanon’s statement urging for cessation of all violence.”

Lebanon has called for an international investigation into a strike that killed 12 people including children on the Israeli-annexed Golan Heights, warning against a large-scale retaliation.

The Israeli military said that an Iranian-made rocket that Lebanon's Hezbollah group fired on Saturday hit a football field in Majdal Shams, a Druze Arab town, killing children and teenagers who were playing there.

U.N. Secretary-General Antonio Guterres has condemned a strike that killed 12 young people in the Israeli-annexed Golan Heights.

Calling on all parties to "exercise maximum restraint," Guterres sent his "deepest condolences to the families of those who lost their lives" while adding that "civilians, and children in particular, should not continue to bear the burden of the horrific violence plaguing the region," according to a statement by the office of his spokesperson.