A Free Patriotic Movement official has warned that the FPM was mulling to resign from the government or boycott all-party talks over the rejection of certain parties to grant Lebanon's Christians their rights but instead decided to resort to street protests.

A statement issued by the Change and Reform bloc that is led by the founder of the FPM, MP Michel Michel Aoun, on Tuesday was “a clear warning that the movement's leadership will not tolerate the continued attempts to ignore the constitutional rights of Christians,” said the official.

Finance Minister Ali Hassan Khalil has said that U.S. officials are committed to supporting Lebanon as he launched a visit to Washington for talks on combating financing of terrorism.

“Officials at the Treasury and diplomats have expressed commitment to backing Lebanon,” Khalil told al-Joumhouria daily in remarks published on Wednesday.

A bag containing hand grenades was found Tuesday at a mosque in the northern city of Tripoli, state-run National News Agency reported.

Interior Minister Nouhad al-Mashnouq on Tuesday vowed from Britain that he will exert efforts to address the “security gaps” at Beirut's Rafik Hariri International Airport, hours after suicide bombers killed 35 people and wounded over 200 at Brussels airport and a metro train.

Speaking after talks with UK Secretary of State for International Development Justine Greening, which tackled Beirut airport's security, the minister pledged that the priority once he returns to Beirut will be for “addressing the security gaps at Beirut's airport.”

The Mustaqbal parliamentary bloc condemned on Tuesday Hizbullah chief Sayyed Hassan Nasrallah's ongoing criticism of Saudi Arabia and Arab countries, while warning of the repercussions of the prolonged vacuum in the presidency.

It said in a statement after its weekly meeting: “Hizbullah and Nasrallah's persistent attacks against the kingdom and Arab countries undermine the interests of the Lebanese people, as well as their stability and source of income.”

The Change and Reform parliamentary bloc on Tuesday called on its supporters to await a signal from bloc chief MP Michel Aoun to stage popular protests, stressing that the presidency is not about parliamentary “quorum.”

“The presidential battle is not a battle of quorum but rather a battle related par excellence to the National Pact,” said the bloc in a statement issued after its weekly meeting in Rabieh.

Saudi security forces have arrested a Shiite preacher accused of glorifying Hizbullah, a newspaper reported on Tuesday.

Hussein al-Radi was detained after Gulf Arab states declared Hizbullah a "terrorist" group earlier this month and brought in tough new measures against anyone supporting it.

Hizbullah condemned on Tuesday the bombings that shook the Belgian capital Brussels, saying they were committed by the “takfiri terrorist groups” that are not sparing anyone in the world.

It said in a statement: “The fire that is blazing in the world, Europe in particular, is the same one that was ignited by some powers against Syria and other countries in the region.”

Lebanese Forces leader Samir Geagea condemned on Tuesday the double standards adopted by the international community in combating terrorism, saying that they “overlook certain forms of terror due to their personal interests.”

He said during a conference on terrorism held in Maarab: “How can these powers combat the Islamic State group and still remain silent over the regime of Bashar Assad?”

Health Minister Wael Abu Faour asked the prosecutor's office on Tuesday to launch an investigation into the wheat scandal that has recently rocked the country.

A statement issued by the health ministry said Abou Faour referred the file to the public prosecutor after it was confirmed that tests carried out on samples taken from Beirut Port showed wheat contained high levels of the carcinogenic ochratoxin substance.