A Pakistani prison official says authorities have executed a man who was reportedly a juvenile at the time of his arrest in a murder case, according to an international rights group.

The official, Omar Farooq, says Ansar Iqbal was executed on Tuesday at a prison in Sargodha, a city in the eastern Punjab province. He says Iqbal's body has been handed over to his family for burial.

On Monday, Maya Foa, an official with the rights group Reprieve, appealed on Pakistan not to hang Iqbal, saying that he was a juvenile at the time of his arrest.

Pakistan has executed 239 convicts since lifting a 2008 moratorium on executions following last December's Taliban attack on a school in the northwestern city of Peshawar that killed 150 people, mostly children.