Please help us find Simba, our dog, last seen in Rome

I'm Laura, and our dog Simba went missing last Sunday near the railway bridge. Simba is small, with a white patch on the chest and a green collar and very shy with strangers. We've knocked on doors, put posters up and checked the shelters. If you've seen Simba, or you have a garden camera or a shed that could be hiding Simba, please tell us through the offers on this page. We'll share contact details once we both agree, so please don't put numbers in the comments. If you find Simba, please don't chase. Speak softly and tell us where. Simba is microchipped and we'll be there within minutes. Thank you to everyone who has shared this already. Thank you to everyone who has looked.