Lost grey tabby cat with red collar

I’m in Leeds and my grey tabby cat with a red collar vanished yesterday around 3pm. We were in Hyde Park, near the Brudenell Social Club on Queen’s Road, when he darted off. He’s medium-sized, with white paws and chest, green eyes, a tiny notch in his left ear, and a red collar with a small silver bell; there’s also a heart-shaped white patch on his chest. I’ve had him since we adopted him last year and I’m really worried—he’s loved and missed by everyone at home. If you’ve seen him, please email me at [email protected] or reply here.