A lawyer representing Muammar Gaddafi's daughter, Aisha Gaddafi, said Wednesday he had sent a letter to the prosecutor of the International Criminal Court to request inquiry into the killing of her father and brother.

A copy of the letter, as reported by Reuters, stated 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. 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," said the letter from Nick Kaufman.

Muammar Gaddafi and Mo'tassim were captured by rebels and killed in their hometown of Sirte on Oct. 20, two months after rebels took the capital, Tripoli. The circumstances of the execution have not been wholly made clear.

Aisha escaped with other family members to Algeria in August. The ICC, which is based in the Hague, released arrest warrants for Muammar Gaddafi, another son, Saif al-Islam, and the former Libyan intelligence chief Abdullah al-Senussi, for various crimes against humanity earlier this year.

In the letter, Kaufman enquired as to whether the ICC prosecutor's office was looking into the killings of her father and brother, and if it was taking measures to confirm that the Libyan authorities were also studying the matter. The aforementioned letter also asked if the ICC was looking into what reports of the alleged NATO air strike on Gaddafi's party seconds before his capture.