IS-linked group in killings claim
A purported affiliate of the Islamic State (IS) group has claimed responsibility for the mass killing of 29 soldiers last week in a southern city taken over by the country's local al Qaida branch.
They made the claim on a Twitter account known to be associated with the militants, who previously claimed responsibility for suicide bombings on Friday in Yemen's capital, Sanaa, that killed 137 people.
US officials have been sceptical about whether the militants have direct links to IS.
Al Qaida in the Arabian Peninsula took over the city of al-Houta on Friday before being pushed out by Yemeni forces.
Al Qaida militants had not claimed responsibility for killing the soldiers in al-Houta.
The chaos comes as the country's embattled president Abed Rabbo Mansour Hadi faces a Shia rebel insurrection.