At least 25 people were killed when two car bombs exploded in the Yemeni city of Radaa, an al-Qaeda stronghold.
The first bomb exploded close to a school bus that was passing a checkpoint in the city, killing 15 school children, Reuters news agency reported.
A second car bomb exploded near to the house of an official rumoured to support the Houthi movement, killing a further 10 people.
Radaa city is a stronghold for al-Qaeda in the Arabian Peninsula (AQAP,) a local offshoot of the extremist terrorist network.
AQAP opposes the rise of the Houthis, who it views as heretics. The Houthis, a Shia military-political movement backed by Iran, seized the capital Sanaa in September amid popular unrest over the transitional government's policies.