This barbaric scene belongs in the Dark Ages, but pictures emerged today of a group of Islamic militants who forced villagers to watch as they stoned a man to death for adultery.

Mohamed Abukar Ibrahim, a 48-year-old, was buried in a hole up to his chest and pelted with rocks until he died.

The group responsible, Hizbul Islam, also shot dead a man they claimed was a murderer.

But the verdict was so shocking that it prompted a gun battle between rivals within the group that left three militants dead, witnesses said.

The executions took place yesterday in Afgoye, some 20 miles south-west of the capital of Mogadishu.

Hizbul Islam fighters ordered hundreds of residents to a field, where a rebel judge announced that the two men had confessed to murder and adultery...