The flurry of high-level diplomacy aimed to end the fighting in eastern Ukraine that is threatening European security.
NATO Secretary-General Jens Stoltenberg said the measures were defensive.
Another 21 people were injured in the incident at the Los Llanos base in southeastern Spain.
International coalition closed its facilities and handed over charge to Afghan military in Dec, 2014.
About 150 French soldiers handed over responsibility to a Turkish unit to operate under the new NATO mission.
It ends with 2,224 American soldiers killed, according to an AP tally, out of a total of some 3,500 foreign troop deaths.
Modi and Putin must acknowledge the changed dynamic around them
Nato’s combat role in Afghanistan has ended. India will have to deal with it.
As NATO’s flag was lowered, formally ending its deployment,Taliban launched yet another bloody attack in Afg.
The global fight against IS has had a slow start but efforts are being made to speed it up.
A total of 63 NATO troops have been killed this year, 46 of them Americans.
NATO had no immediate confirmation on the latest Ukrainian report.
NATO aircraft tracked Russian strategic bombers over the Atlantic and Black Sea on Wednesday.
“NATO is here to say. Russia is here to say. So we’re going to have some kind of relationship,” Stoltenberg said.
NATO fighter jets intercepted a Russian spy plane over the Baltic Sea after it breached Estonian airspace.