Yemen prison strike death toll rises to 87

Ahmed Mahat, head of the Doctors Without Borders mission in Yemen, said rescuers completed their search efforts late Saturday at the site of the prison in Yemen's northern province of Saada, a stronghold of Houthi rebels on the border of Saudi Arabia.

He said 266 people were wounded in the air strike during an intense air and ground escalation in the country's civil war.

Yemen's conflict began in 2014, when the Iranian-backed Houthis took the capital, Sanaa, and much of northern Yemen, forcing the government to flee to the south, then to exile in Saudi Arabia. The Saudi-led coalition, backed at the time by the US, entered the war months later to try restoring the government to power.