SANA, Yemen — A suicide bomber and a subsequent car bombing killed at least 20 people Wednesday at a mosque in Yemen's rebel-held capital, Sana, amid the country's raging civil war, officials said.
The suicide bomber blew himself up inside the mosque during the evening call to prayers. Witnesses said the car bomb exploded while people were carrying out the wounded.
Medical officials said the death toll may rise.
In a message circulated on social media, Yemen's local Islamic State affiliate claimed credit for the bombing, identifying the suicide attacker as Quay al-Sanaani. It said the assault was revenge against the Shi'ite rebels known as Houthis that hold Sana.
The Associated Press could not independently verify the message, though it resembled other claims of responsibility by the group.
The Islamic State affiliate in Yemen has carried out similar attacks targeting mosques, including a series of suicide bombings on March 20 in Sana that killed 137 people.
Yemen has been mired in violence since the Houthis captured Sana last September.
They are fighting alongside army units loyal to former president Ali Abdullah Saleh against forces loyal to exiled President Abed Rabbo Mansour Hadi, as well as southern separatists and local militias.
A Saudi-led coalition has been launching airstrikes against the rebels since March.