Al-Mustaqbal Movement leader ex-PM Saad Hariri discussed with Qatar's Emir Sheikh Tamim bin Hamad al-Thani the importance of unity against Huthi rebels in Yemen.
“The one-hour meeting (in Doha) tackled the latest developments in the region,” said a statement issued by Hariri's press office.
The talks “focused on the importance of Arab unity” following the Saudi-led coalition's launch of strikes against Shiite Huthi rebels, it said.
Hariri also thanked the Emir on Qatar's efforts to resolve Lebanon's hostage crisis, the statement added.
The al-Qaida-linked al-Nusra Front and Islamic State group took Lebanese soldiers and policemen captive in August last year after they overran the northeastern border town of Arsal.