FILE PHOTO: Police take part in a simulated gunmen attack demonstration for the public at a housing estate in Singapore

FILE PHOTO: Police take part in a simulated gunmen attack demonstration for the public at a housing estate in Singapore

Police take part in a simulated gunmen attack demonstration for the public at a housing estate in Singapore December 10, 2017. Photo: Reuters/Edgar Su

March 23, 2018 4:55 PM (UTC+8)