The respondent obtained a Hong Kong judgment for damages arising from loss of or damage to cargo carried on the vessel ‘Amer Prabha’. Prior to judgment, the ‘Amer Prabha’ had been arrested in Singapore and released upon a letter of undertaking issued by its P&I insurer, Ocean Marine Mutual Insurance Association Ltd. Ocean Marine later failed to satisfy the Hong Kong judgment and went into provisional liquidation. The respondent then arrested the ‘Ivory Tirupati’ in Cape Town as an associated ship under the Admiralty Jurisdiction Regulation Act 105 of 1983, seeking to enforce the Hong Kong judgment. The appellants applied to set aside the arrest, relying on sections 3(6) and 3(8) of the Act and the terms of the letter of undertaking.