Singapore student Siti Aishah Siregar left home saying she was going to college; hours later her family found her passport missing and a Cambodia flight ticket in her email

• Singapore police confirmed that the 20-year-old had already left the country on an outbound flight, prompting an urgent search to track her down in Phnom Penh.
• According to the teenager's eldest brother, Syafiq Siregar, who spoke to news outlet Berita Mediacorp, Aishah informed her mother at around 11am on 28 July that she