The opposition parliamentary blocs are mobilizing to confront what they consider a violation of the constitution as Speaker Nabih Berri prepares to call for a legislative session amid a presidential vacuum, a media report said on Friday.

Berri will schedule the session within two weeks, Asharq al-Awsat newspaper reported.

The reports about a U.S. warning against bringing Iranian oil into Lebanon were confirmed after caretaker PM Najib Mikati met with visiting USAID chief Samantha Power in the presence of U.S. Ambassador Dorothy Shea, ad-Diyar newspaper said on Friday.

“During the meeting, Mikati was informed that the U.S. considers all Iranian oil as subject to sanctions, and that’s why he has in principle decided to shelve the grant if there won’t be an exemption from the U.S. Treasury similarly to what’s happening with Iraq,” the daily added.

Despite the total deadlock in the presidential election process, a breakthrough is still possible within two months, informed sources told al-Joumhouria newspaper in remarks published Friday.

MP Marwan Hamadeh of the Democratic Gathering bloc also told al-Jadeed TV on Friday that, according to information he has, the presidential election will not be delayed beyond this year.

The head of Hezbollah’s parliamentary bloc, MP Mohammed Raad, said Thursday that his party wants a new Lebanese president who would not “stab the resistance in its back.”

“Let us elect a president. If we want him to protect national sovereignty and preserve his constitutional oath and the interest of the Lebanese, let us agree on a president who would not be a confrontational president,” Raad urged.

A stray bullet hit a Middle East Airlines jet while landing in Beirut on Thursday, causing some material damage. No one among the passengers or crew was hurt, the head of the Lebanese airline company said.

The jet was landing on its way back from Jordan when the bullet hit the plane, said Mohamad El-Hout. He told reporters that Beirut's Rafik Hariri International Airport often faces such incidents, in addition to birds that fly in the area, endangering aviation.

U.S. energy mediator Amos Hochstein reassured Thursday that he is confident that Israel will continue to abide by the sea border demarcation agreement with Lebanon despite Benjamin Netanyahu’s return to power.

In remarks to Al-Jazeera television, Hochstein added that gas companies will start working in Lebanon and that foreign investments will flow into the country to boost its prosperity.

Mount Lebanon Prosecutor Judge Ghada Aoun was on Thursday notified of being summoned to appear before State Prosecutor Ghassan Oueidat on Mondya over the libel complaint filed against her by Speaker Nabih Berri and his wife Randa, the National News Agency said.

Aoun had published Wednesday a list of names of Lebanese officials who have frozen accounts in Switzerland, citing WikiLeaks as a source.

Caretaker Prime Minister Najib Mikati on Thursday called on all parties to quickly elect a new president and form a new government in order to "protect the country and preserve the state."

“This would end the caretaker state, which in its nature is temporary and limited to the matters that fall under this principle,” Mikati said.

Lebanon's divided parliament failed Thursday to elect a new president for the fifth time, with the post vacant since the mandate of Michel Aoun expired last month.

Michel Mouawad, whose father Rene Mouawad served as president, was the frontrunner with 44 votes on Thursday, still far short of the two-thirds majority -- or 86 ballots -- needed to win.

Administrator of the United States Agency for International Development (USAID) Samantha Power announced Thursday that USAID will provide $50 million for Lebanese and refugee students to attend the American University of Beirut (AUB), Lebanese American University (LAU), and Notre Dame University-Louaize (NDU).

Of the $50 million, $15 million will support 140 full undergraduate scholarships to AUB and LAU for financially disadvantaged yet academically meritorious students, the U.S. Embassy said in a statement. "The remainder of the funds will provide partial need-based financial aid for about 3,500 students over the next three years to help students who can no longer afford tuition amidst Lebanon’s economic crisis," the statement went on to say.