TEHRAN, Young Journalists Club (YJC) - Senior government officials, political leaders and supporters were leaving the airport after greeting the powerful ethnic Uzbek leader and former warlord when the explosion happened.
Dostum, clad in a Western suit and sunglasses and travelling in an armoured vehicle, was unharmed, said his spokesman Bashir Ahmad Tayanj.
"We can confirm 10 people have been killed or wounded in the explosion caused by a suicide attacker on foot," said interior ministry spokesman Najib Danish, without giving a breakdown.
He said civilians including a child and security force members were among the casualties.
Dostum, who is linked to a catalogue of human rights abuses in Afghanistan, was mobbed like a celebrity as he left the chartered plane from Turkey where he has lived since May 2017.
His return, which has been the subject of much speculation, comes amid violent protests in several provinces across northern Afghanistan, his traditional power base.