"The vast majority of those leaving Ukraine are women and girls and the vast majority of those trafficked are women and girls so you can see the math is not good. It’s a toxic cocktail of risk."

Said Val Richey, "a special representative for combating human trafficking at the Organisation for Security and Co-operation in Europe," quoted in "Ukraine refugees go from one hell to another as abusers exploit women and children/People traffickers pretending to be doctors and Good Samaritans are taking advantage of border chaos to deceive evacuees" (London Times).

Some young Ukrainians are taking matters into their own hands. Every day after online lessons, Tymur Tsaplienko and his best friend Dasha Griban, both 16, head to Warsaw Central station where they don hi-vis jackets and hand out blue and yellow leaflets to arriving refugees, warning them not to travel alone and to photograph numberplates of cars.