i'm kayleen devlin and i work for the bbc�*s disinformation team. and these are just some of the ways we check and verify content shared online. one of the first things i'll do when i come across a piece of content is ask whether it's recent and where it was taken. here is an image posted onto instagram by the mayor of the ukrainian city of chernihiv. it claims to show the destruction from a russian attack. i'm trying to find out if it's genuine and what event it's referring to. first, i'll do a reverse image search. this can be useful for showing if an image has appeared somewhere else and whether it's old. there are a number of sites you can do this on, including google, yandex and tineye. in this instance, a search of the image shows the damage was caused at a library in chernihiv. so this image appears real. here, you see another distressing photo of a pregnant woman in mariupol. both she and the attack were labelled fake by pro—russian voices. my colleagues at the disinformation unit proved that the image wasn't a fake by finding out more det