CCTV has captured the heart-wrenching moment security guards save the life of a choking toddler who turned blue.
Niko Nesbeth and his partner Joey Madrigal were working at a petrol station in Beverly Hills, Los Angeles, US, on the morning of May 26 when they noticed a distressed mum yelling "who's a doctor?" after the boy started choking.
A bystander quickly gave the mum some water before Niko ran over and immediately called for paramedics who arrived within minutes.
