VIENNA - Austria is considering widening an asset freeze list to include a top official at the Libyan Investment Authority (LIA) because of possible links to Muammar Gaddafi's inner circle, the Foreign Ministry said on Thursday. The ministry said it had had asked Austria's National Bank to consider the measures against Mustafa Zarti, the LIA's deputy chief, following international sanctions on Gaddafi's family and associates. Zarti has an Austrian passport, it said.