The rebels who captured Muammar Gaddafi’s son and one-time heir apparent say they will hold him until a court system is set up in Libya and are demanding that he be tried inside the country.

Muammar Gaddafi’s former heir apparent Seif al-Islam has been captured by revolutionary fighters in the southern desert just over a month after his father was killed, setting off joyous celebrations across Libya and closing the door on the possibility that the fugitive son could stoke further insurrection.

The prosecutor of the International Criminal Court has said he will travel to Libya next week for talks with the country’s transitional government on where Muammar Gaddafi’s son Seif al-Islam will be tried.

Muammar Gaddfi’s son Saif al-Islam – the only member of the ruling family to remain at large – was captured as he travelled with aides in a convoy in Libya’s southern desert, officials said today.