Israel and the Lebanese-based militant group Hezbollah are on a brink of a full-blown war

Several NATO members, including the US, have issued travel warnings for Lebanon, urging their citizens to immediately leave the country in the face of a potential full-blown war between Israel and the pro-Palestinian armed group Hezbollah.

The tensions rapidly escalated on Saturday, when a rocket strike killed 12 children in the Druze city of Majdan Shams in the Israeli-occupied Golan Heights. The Israel Defense Forces (IDF) said that the projectile was an Iranian-made Falaq-1 rocket fired by Hezbollah from southern Lebanon. The militants, however, denied their involvement in the strike.

The US Embassy released a travel notice on Saturday, urging Americans to "strongly reconsider travel to Lebanon."

"The security environment remains complex and can change quickly," the embassy stated.

The UK Foreign Office advised "against all travel to Lebanon due to risks associated with the ongoing conflict" between Israel and Hezbollah. Similar warnings were issued by France, Germany, Belgium, the Netherlands, Norway, and Denmark, as well as non-NATO countries, such as Ireland and Australia.

The IDF and Hezbollah have engaged in sporadic fighting since the war in Gaza broke out in October. The armed group repeatedly fired rockets and mortar shells at Israeli positions in solidarity with Hamas and the Palestinians in Gaza, prompting the IDF to retaliate with artillery fire and airstrikes.

In response to Saturday's strike in the Golan Heights, Israel threatened Hezbollah with an "all-out war," while Foreign Minister Israel Katz said that the group "crossed all the red lines here, and the response will reflect that."

The Israeli security cabinet met on Sunday evening and granted Prime Minister Benjamin Netanyahu and Defense Minister Yoav Gallant the power to determine the timing and the scope of further military actions.