Crisis resources Crisis Resources The below resources are for crisis situations. All hotlines operate daily, 24 hours Emergency medical services If you or someone you know is in immediate harm, call emergency medical services at 995 or approach the A&E department of your nearest hospital. Suicide prevention and crisis helplines Samaritans of Singapore: Make a referral to SOS by writing to email@example.com, or calling their 24-hour hotline at 1800-221 4444. Singapore Armed Forces (for SAF personnel only): 1800 278 0022. Mental health emergency helpline Institute of Mental Health emergency helpline: 6389 2222.