An unknown coalition aircraft released a single GBU-12 on the target,  a 500-pound; American-made precision-guided bomb that was dropped at 9:56 p.m., less than 50 minutes after the Saudis first caught sight of the tents.

U.S.-BACKED SAUDI AIRSTRIKE ON FAMILY WITH NINE CHILDREN SHOWS “CLEAR VIOLATIONS” OF THE LAWS OF WAR
Members of the Saudi-led coalition are ignoring their own procedures aimed at minimizing civilian casualties in Yemen, a U.S. intelligence report says.

The family was under divine protection, as the bomb missed the intended target.