"While the eyes of the world now are on the people being evacuated and the planes leaving, we need to get supplies in to help those who are left behind," Brennan said in an emailed statement.
He said the WHO was calling for empty planes to divert to its warehouse in Dubai, United Arab Emirates, to collect the supplies on their way to pick up evacuees from Afghanistan.
The United States has enlisted six commercial airlines to help move Afghan evacuees, however Washington and NATO coalition partners have so far indicated that they cannot bring supplies on incoming evacuation planes due to "operational constraints and security concerns", Brennan said. read more