TRIPOLI - Representatives of the International Criminal Court flew arrived in Tripoli on Sunday to try to secure the release of a detained delegation visiting Muammar Gaddafi's captured son, a Libyan official said.

The four-member delegation was being held in the western mountain town of Zintan after one of its lawyers, Australian Melinda Taylor, was found carrying documents regarded as suspicious for Saif al-Islam Gaddafi, a Libyan lawyer and a militia member said on Saturday.

The president of the international war crimes court demanded their immediate release.

"An (ICC) delegation arrived today in Tripoli. They are holding meetings with officials about this," said the Libyan official, without giving further details.

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