U.N. agency says 900 refugees from Jordan have arrived in Horn of Africa , asks ships in area to be vigilant . WHO : At least 643 people have been killed , more than 2,000 injured in three weeks . UNICEF : Aid includes medical supplies for up to 80,000 people and more airlifts are planned .
U.N. agency says 900 refugees from Yemen have arrived in Horn of Africa , asks ships in area to be vigilant . WHO : At least 643 people have been killed , more than 2,000 injured in three weeks . UNICEF : Aid includes medical supplies for up to 80,000 people and more airlifts are planned .