Prime Minister Tammam Salam warned that the security situation in Lebanon “could get out of control” if a clear and urgent security plan was not implemented by the Lebanese authorities.

In remarks to As Safir daily published on Wednesday, Salam said: “What's happening in (the northeastern town of) Arsal and its surroundings is very dangerous.”

The political arch-foes expressed readiness to attend the national dialogue sessions that President Michel Suleiman is seeking to revive amid reports that the first all-party talks session will be held on March 31.

According to An Nahar newspaper published on Wednesday, Speaker Nabih Berri, Free Patriotic Movement leader MP Michel Aoun, Phalange party leader Amin Gemayel and al-Mustaqbal movement expressed readiness to attend the sessions despite hesitance by Hizbullah and the Lebanese Forces.

The Lebanese army reopened on Wednesday the Labweh-Arsal road in the eastern Bekaa Valley and sent reinforcements to Arsal, a Sunni border town blamed for rocket fire on Shiite areas, to deploy on its outskirts.

OTV said the military carried out patrols in the town on Wednesday morning.

Al-Mustaqbal parliamentary bloc on Tuesday called on the army and security forces to “protect Arsal from the Syrian regime's attacks and the practices of Hizbullah's members.”

The bloc accused members of Hizbullah of “harassing the town's residents,” urging security forces to put an end to what it described as a “siege” of Arsal.

Former Prime Minister Saad Hariri on Tuesday warned against “the dangers resulting from the incitement campaigns targeting the city of Tripoli and the town of Arsal,” stressing that “the State should be fully responsible of the safety of the citizens.”

He underlined that the residents of the two regions “will not surrender to the threats of those who are involved in killing the Syrian people and in causing sectarian discord in Lebanon and the region.”

The Phalange Party on Tuesday decided to keep its three ministers in Prime Minister Tammam Salam's cabinet despite its reservations over the government's policy statement.

“We ask the Phalange Party's ministers to continue in their political confrontation inside the cabinet,” the party said in a statement issued after an emergency meeting for its political bureau.

Demonstrators blocked several key roads throughout the country on Tuesday to protest the continued closure of the only route leading from and to the border town of Arsal by residents of neighboring al-Labweh.

In the Bekaa, “a number of individuals blocked the al-Masnaa road in solidarity with Arsal,” al-Jadeed television reported.

The Change and Reform bloc stated on Tuesday that it has proposed a number of plans to tackle the situation in Arsal and other Bekaa towns.

MP Ibrahim Kanaan said after the bloc's weekly meeting: “The plans seek to rescue Arsal and the Bekaa towns from the ongoing flow of Syrian refugees and gunmen.”

Five Syrian nationals were arrested in the Akkar town of Shadra on Tuesday for entering Lebanon illegally, state-run National News Agency reported.

Members of the Lebanese joint border security force arrested “at a checkpoint on the southern entrance of the Akkar town of Shadra five Syrians who had sneaked into Lebanon through an illegal border crossing … in Wadi Khaled,” NNA said.

A top U.N. aid official pleaded Tuesday for more international support for Lebanon, which is staggering under the burden of sheltering nearly a million refugees from Syria.

"It is imperative that the international community helps bear the brunt of the pressure on Lebanon," said Ross Mountain, the U.N. aid coordinator in the country.