A lawyer for Muammar Gaddafi's daughter said on Wednesday, December 14, he had written to the prosecutor of the International Criminal Court (ICC) to ask if an investigation had been launched into the killing of her father and brother.

According to Reuters, a copy of the letter said that Muammar Gaddafi and his son Mo'tassim were "murdered in the most horrific fashion with their bodies thereafter displayed and grotesquely abused in complete defiance of Islamic law".

"The images of this savagery were broadcast throughout the world, causing my client severe emotional distress," said the letter from Nick Kaufman, who represents Aisha Gaddafi.

"To date, neither Ms. Gaddafi nor any member of her family has been informed, by your office, of the initiation of an investigation into the circumstances surrounding the brutal murders," the letter said.

Muammar Gaddafi and Mo'tassim were captured in their home town of Sirte in October, two months after rebels seized the capital Tripoli and put the longtime Libyan leader and his relatives to flight.

They were killed soon after their capture while in the custody of fighters loyal to the country's new leadership, in circumstances that have not been fully explained.

Gaddafi's daughter Aisha fled with other family members to neighboring Algeria in August.