Samer Qubrusli, the Syrian director-general of ports, told Reuters that authorities had found 34 bodies and rescued 14 people in Syrian waters by Thursday evening.
The Syrian transport ministry cited survivors as saying the boat left from Lebanon's northern Minyeh region on Tuesday with between 120 and 150 people onboard.
Register now for FREE unlimited access to Reuters.com RegisterLebanese transport minister Ali Hamiye said he had been informed by Syrian Transport Minister Zuhair Khuzaim that 33 bodies had been recovered and 16 people rescued.
The Syrian transport ministry statement said the director of the small island port of Arwad off the coast of Tartus informed them at 4:30 p.m. that a drowned person had been sighted near an anchored ship.
About 80 Lebanese, Syrian and Palestinian migrants were on board, of whom some 40 were rescued, seven were confirmed dead and around 30 officially remain missing.