A senior Afghan general had ordered the capture of a Taliban deputy governor accused to of authorizing the burning alive of two people.
General Daud Daud informed the BBC that the incident had happened last Friday in the northern province of Sar-e Pol.
He had stated that the gruesome killings had been ordered by Maulvi Nasrullah, who is a deputy governor of the Taliban in the neighbouring Balkh province.
Afghanistan's human rights commission had fated the incident.
In a statement, it had stated that all those responsible should be arrested for what they called "the gravest human rights violation".
The Taliban had stated that they had been unaware of the incident.
Officials had reported that one of those who was killed had been a driver of a local Taliban commander.
Khan's bodyguard had conflicted the abduction and had been beaten by Khan for not obeying orders.
Daoud had accusedly killed Khan in revenge for his beating and escaped. He has been receiving hospital treatment in Kabul.
It had been a rare case of a Taliban secondary turning against a superior.
Officials had reported that on the morning after the escape, the kidnapped trader and the driver had been beaten by the Taliban who had suspected them of having a part in Mastu Khan's killing.
Maulvi Nasrullah has been accused to of ordered that the pair be extinquished with fuel and burnt alive.