Army Commander General Joseph Aoun on Tuesday stressed that the military will not allow the Syrian refugee encampments in the country to turn into “a cover for terrorists.”

The Lebanese authorities must “disclose the full findings of their investigation” into the deaths of four Syrian detainees, Amnesty International said Tuesday, after the country’s military prosecutor revealed Monday that a forensic report concluded that they had died of “natural causes.”

Syrian fugitive Youssef Nouh, 22, was killed Tuesday during an army raid in the al-Sanabel Syrian refugee encampment in the border town of Arsal, state-run National News Agency reported.

The Internal Security Forces arrested during search raids in Beirut and the Bekaa valley, a five-member cell involved with the Islamic State terror group, the ISF said in a statement on Tuesday.

Hizbullah fighters have made “additional gains” in their fight against al-Nusra Front militant group along the eastern border with war-ravaged Syria, and plan to wage an assault against the Islamic State organization located on the other side of the outskirts, media reports said on Tuesday.

LBCI said that Hizbullah was able to seize control on Tuesday of Wadi Kamil, Wadi Hammoudi, Makaabat al-Forn, al-Baydar, Shaabat al-Nahle and Wadi Dalil al-Barak, in Arsal's outskirts.

Speaker Nabih Berri lauded the “efforts” of the Resistance fighters as he assured that they are battling al-Nusra Front militants in the outskirts of Arsal “on behalf of Lebanon and the Lebanese,” al-Joumhouria daily reported on Tuesday.

Prime Minister Saad Hariri on Monday kicked off his official visit to the United States by meeting a number of U.S. Congress officials in Washington.

The Kataeb Party on Monday accused the ruling political class of “giving up sovereignty,” in connection with Hizbullah's operation in the outskirts of the northeastern border town of Arsal.

A Kuwaiti Islamist member of parliament on Monday proposed legislation calling for members and supporters of Lebanon's Hizbullah be sentenced to up to 20 years in jail.

President Michel Aoun on Monday presided over a security meeting at the Baabda Palace and listened to a briefing from the army chief about the situation on the Lebanese-Syrian border amid the ongoing clashes in Arsal's outskirts between Hizbullah and al-Nusra Front.