ISIS and Boko Haram members are joining terrorist groups already in Libya, and are also closing in to move into Tunisia, Libyan premier Abdallah Al Thani (photo) said this morning.

Italian media report that Al Thani raised the alarm this morning when speaking to Tunisian radio station Express FM.

He said that Egyptian intervention to attack ISIS military positions in Libya were carried out with the approval of the Libyan government and that the United Nations had turned down a request to provide weapons and ammunitions to the Libyan government for its fight against terrorism.

The Tunisian government has strengthened its military presence on the borders with Libya, including at sea. The Tunisian army is made up of 27,000 land troops, 4,000 aviation members and 4,500 in the navy.

On the other front, radical militants killed four members of the Tunisian National Guard in the mountainous Kasserine region near the Algerian border, Tunisia's Interior Ministry said early Wednesday.

The brief statement blamed "terrorists" for the attack but gave no other details. Local radio added that the attack took place around midnight and the militants fled with the guardsmen's weapons.

The attack took place near Mount Chaambi, a national park on the Algerian border that has provided refuge to al-Qaida linked Islamist radicals blamed for attacks against army and politicians in Tunisia for the past two years.

The attack comes as Tunisian forces on the Libyan border are on high alert in the wake of the murder of 21 Egyptian Christians in Libya by another radical Islamic group. Tunisia is also bracing for an influx of Egyptians fleeing Libya.

Italy is pressing for swifter action by the United Nations to find a political solution to Libya's rapidly deteriorating security situation.

Foreign Minister Paolo Gentiloni, speaking in Parliament Wednesday, urged the international community to "quicken its pace before it is too late."

Hours before a U.N. Security Council emergency meeting on Libya, Gentiloni said the United Nations must "double its efforts" to promote political dialogue among Libyans who are divided among competing militias, Islamist faction and tribal rivalries.

Gentiloni said the only solution is a political one.

Last week, Italy appeared to be supporting military intervention. Premier Matteo Renzi has since stressed diplomacy.

Egypt this week launched airstrikes in neighboring Libya after the Islamic State group posted a video of the beheadings of 21 Egyptian Coptic Christians there.