Authorities are searching for a 12-year-old girl who has gone missing in Singapore. She was last spotted in the vicinity of Block 131 Ang Mo Kio Avenue 3. The sighting occurred at approximately 10:00 am on June 24. Police and community members are working to locate her. Further details regarding her appearance have not been provided in the initial report. The public is encouraged to assist in the search. Efforts remain focused on the Ang Mo Kio area.