Bank Negara Malaysia is looking for two individuals to assist in investigations under the Exchange Control Act 1953 in connection with the ongoing 1MDB investigations.
The central bank, in a Facebook post today, said the two were former executive directors of 1MDB, identified as Casey Tang Keng Chee, 50, and Jasmine Loo Ai Swan, 42.
Bank Negara said it is seeking public information to help locate the duo but no reward would be offered.
"Members of the public who have any information on the whereabouts of the individuals may contact us or lodge a report at the nearest police station," it said.
Previous media reports have placed Tang as one of the pioneers of the Terengganu Investment Authority (TIA), the precursor of 1MDB.
He was reported to be involved in 1MDB's plan to subscribe to US$500 million of murabaha notes in the 1MDB-PetroSaudi International joint venture.
Meanwhile, Loo, a lawyer by training, took over Tang's position after the latter's three-year contract ended in March 2011.
Prior to that, she was the executive director at UBG, a company formerly owned by local tycoon Low Taek Jho, who is also being sought for investigation in relation to 1MDB.