At least six people were killed in the northern city of Tripoli overnight, as rival neighborhoods clashed using for the first time different caliber mortars in addition to flares.

"Very violent fighting took place last night until 5:00 am that killed six people and wounded 40. The clashes and shelling affected several areas of the city, including the center," a security source told Agence France Presse.

France accused the Syrian regime on Wednesday of trying to transfer the ongoing civil war in Syria to neighboring countries, particularly to Lebanon.

"We are very concerned about the violent activities taking place in the northern city of Tripoli,” Spokesperson of the French Foreign Ministry Philippe Lalliot expressed.

Speaker Nabih Berri expressed on Wednesday his concern over the security situation in northern Lebanon in light of the eruption of clashes between the rival neighborhoods of Bab al-Tabbaneh and Jabal Mohsen.

He also voiced his concern over the security situation in other regions in Lebanon, his visitors quoted him as saying during his weekly meeting with lawmakers held at his Ain el-Tineh residence.

The March 14 General Secretariat condemned on Wednesday Hizbullah's fighting Syria, linking its involvement to the eruption of clashes in the northern city of Tripoli.

It said in a statement after its weekly meeting: “Hizbullah's unjustified war is part of its agenda to empty the Lebanese state of its institutions.”

Clashes in the northern city of Tripoli intensified Wednesday afternoon, a day after fierce battles rocked the city, claiming the lives of at least 12 people.

Meanwhile, the meetings of the leaders of the Bab al-Tabbaneh's fighting frontiers failed to reach an agreement on a ceasefire in the city, LBCI television revealed.

Caretaker Defense Minister Fayez Ghosn called on officials to stop meddling in the country's security, pointing out that the country will most likely fall into sedition if the clashes in the northern city of Tripoli weren't controlled by the army.

“The army is playing an important role in the northern city... It was granted the green light by the political power to do what is necessary,” Ghosn said in comments to Voice of Lebanon radio (93.3)on Wednesday.

Efforts exerted by Prime Minister-designate Tammam Salam hit several roadblocks this week after fighting engulfed the northern city of Tripoli and Hizbullah's involvement in the Syrian war drew strong local and international condemnation.

A proposal to give the Hizbullah-led March 8 alliance, the March 14 coalition and the centrists eight ministers each in the new cabinet collapsed after Hizbullah's involvement in the fighting in Syria, informed sources told An Nahar daily published Wednesday.

Clashes renewed in a fierce manner in Tripoli on Tuesday afternoon, leaving at least four people dead and several others wounded, as the Arab Democratic Party declared an open battle and warned that it “will not let Tripoli sleep.”

The National News Agency said Mohammed Rashid Soltani, 30, was killed and two other people were wounded, identifying them as Yehia Seif Obeid, 81, and Khaled Mohammed Mohammed, 33.

Army commandos joined on Tuesday other military brigades seeking to impose security in the northern city of Tripoli after deadly clashes between rival neighborhoods left several people dead and injured.

The army completed the deployment before noon in the areas that witnessed heavy clashes in the past three days, said the state-run National News Agency.

Caretaker Interior Minister Marwan Charbel admitted on Tuesday that the authorities had miscalculated in not building camps to house Syrian refugees escaping the fighting in their country.

In remarks to Voice of Lebanon radio (93.3), Charbel said: “We should have kept Syrian refugees in tents and provided them with all the necessary humanitarian assistance and medical aid … to contain the security violators that are present among them.”