Women and children were among those murdered when the vessel was hit close to the Bab al-Mandeb strait.
Among the dead were Somali refugees conveying ID archives issued by the UNHCR.
Around 80 survivors were safeguarded and taken to hospital.
It stays misty who did the assault.
The port is controlled by Houthi rebels who are battling a Saudi-drove coalition in Yemen’s two-year war. The coalition, as a rule, controls Yemen’s airspace.
The revolt controlled said the evacuees had been assaulted from the air by the coalition, and coastguard Mohamed al-Alay revealed to Reuters the pontoon had been hit by helicopter gunships.
In any case, a port authority said that the art had docked and the dead and harmed had been hit with light weapons shoot.
The coalition has not remarked on the incident.
It is likewise not known where the boat was going to and from.
Notwithstanding the compassionate emergency which has conveyed Yemen to the verge of starvation, a few vagrants from Africa keep on traveling to the war-torn nation.
UNHCR authorities said the general population in the pontoon may have been heading towards Sudan or different nations toward the north to avoid decaying conditions in Yemen.
Somalia is additionally presently at danger of starvation, as per the UN, with 2.9m confronting sustenance frailty – taking after many years of common war and a past starvation in 2011.