Polio vaccination teams successfully reached more than half a million children in Gaza during Round One of an ambitious campaign.

The Taliban has suspended polio vaccination campaigns across Afghanistan, the United Nations announced Monday. News of the suspension was relayed to U.N. agencies right before the September immunization campaign was due to start.

The U.N. says the Taliban have suspended polio vaccination campaigns in Afghanistan. It's a devastating setback for polio eradication.

In a bid to counter malnourishment in Gaza, the UN will add nutrients to the second round of the polio vaccination campaign. As per the global health organization, over 3,000 children are undernourished.