The Las Vegas massacre is a stark reminder of what could happen to us at any time (Gunman kills at least 58 at Vegas concert; Oct 3).

Living in crowded Singapore, soft targets are everywhere every day.

Following the event, there was much discussion in the United States, in particular, on how another tragedy like that could be prevented.

The suggestions ranged from bag checks at events and venues to reporting to the authorities suspicious or unusual activities.

For us in Singapore, we have the SGSecure app, which all of us should download to our phones.

The app enables the police and the Singapore Civil Defence Force to send alerts to the public in times of emergencies, and the public to report suspicious activities.

The app, which enables the police and the Singapore Civil Defence Force to send alerts to the public in times of emergencies, and for the public to report suspicious activities, is part of the SGSecure movement that was launched last year.

This app is far more efficient than dialling 999 if we want to report something.

More effort should be put into spreading awareness on the existence of the SGSecure app, its importance and how to use it.

Ho Soon Teck (Dr)