Lebanese security forces have detained a man suspected of being behind last week's shooting outside the U.S.-embassy north of Beirut in which no one was hurt, police said Monday.

The Internal Security Forces said in a statement that they have detained a Lebanese citizen born in 1997 in a suburb of Beirut. They identified the suspect only by the initials MK.

During his expected visit to Lebanon in mid-October, U.S. energy mediator Amos Hochstein will receive from Speaker Nabih Berri a draft framework agreement on the demarcation of the land border with Israel, a media report said.

Berri’s draft will comes on response to a U.S. draft that Hochstein had handed to him during his latest visit to Beirut, the privately-owned al-Markazia news agency reported on Monday.

Qatar is inclined to talk to Iran about the Lebanese presidential file in the near future, the Beirut-based Akhbar al-Yawm news agency said Monday.

Strongly backed by the U.S. and Egypt, and after it played a role in the American-Iranian prisoner swap deal, Qatar will likely succeed in convincing Tehran of mediating with Hezbollah in order to break the impasse, the privately-owned news agency said.

The U.S. has denied any disagreement between the members of the five-nation group on Lebanon who convened last week in New York but failed to issue a statement.

U.S. regional spokesman Samuel Werber denied any disagreement between France, Qatar, Egypt, Saudi Arabia and the U.S., affirming in an interview Sunday with al-Jadeed TV channel, that the five members all agree that Lebanon must carry out reforms. "The meeting of the five-nation committee was one of the most important meetings on Middle East affairs, and there is no disagreement between the members," he said.

Qatari envoy Abou Fahad Jassem Al-Thani has told Hezbollah and the Free Patriotic Movement that Doha is not clinging to the nomination of Army Commander General Joseph Aoun, a media report said on Monday.

Free Patriotic Movement chief Jebran Bassil has warned some political rivals that “if the FPM fully moves to the opposition it will become stronger.”

Lebanese politicians are no longer pinning hopes on domestic and foreign initiatives to break the presidential impasse soon.

Lebanese Forces chief Samir Geagea and former Progressive Socialist Party leader Walid Jumblat are both losing hope, as Geagea and Jumblat expressed pessimism over an imminent solution.

Hezbollah and the Amal Movement have not responded positively to the proposals of a Qatari envoy who is visiting Lebanon, sources close to the Shiite Duo said.

Saudi Ambassador to Lebanon Walid Bukhari has stresssed that "sustainable solutions come from within Lebanon, not from abroad."

Israeli and Lebanese troops exchanged tear gas fire on the border between Lebanon and the Israeli-occupied Shebaa Farms, the two armies said.