1MDB today was allowed by the Kuala Lumpur High Court to serve a writ of summons amounting to US$3.7837 billion (RM16.85 billion) to the sister and younger brother of fugitive businessperson Low Taek Jho, or Jho Low, who are currently abroad.Lawyer Siva Kumar Kanagasabai, representing 1MDB, said that based on their last known addresses, Low May Lin was in Singapore, while her younger brother, Taek Szen, was in Hong Kong.