A young Australian woman is still missing following the London terror attack on Saturday night.
21-year-old Sara Zelenak from Brisbane was separated from her friend when the white van crashed into pedestrians on London Bridge and chaos broke out.
Her friends and family haven't heard from her since and there are huge concerns for her safety.
"I ran thinking she would be running with me but I looked back and she wasn't there," friend Pri Gonçalves recalls.
The pair had been out for dinner when they heard the crash, Pri says they walked a few steps to see what had happened when they heard people screaming.
"People started running and shouting 'run'. At that moment I got scared and desperate so I ran," Pri told Fairfax Media.
"Sara was with me when people started running and shouting but at that very moment we got separated."
Since the attack Sara hasn't answered her phone and she hasn't checked her WhatsApp since 10:03pm on Saturday night.
"I thought I was going to die, it was by far the most traumatising, shocking and scariest moment of my life," Pri recalls.
"I'm feeling terrible and scared of crowded places, [of] people and of the tube. I can't be alone and what makes this worse is to know that Sara was with me when [she went] missing.
"Please help, I just want to find her, she is an amazing person and it's just not fair that something bad might have happened to her. I wasn't able to help her and it's killing me."
Sara's picture has now been shared over 500 times as family and friends try to find out what happened to her that night.