Avon and Somerset Police are reaching out for help to find missing Matthew, who has links to Brislington, Bath and Bristol.
The force took to 'X' (formerly Twitter) so appeal for the public's help:
Have you seen Matthew, 43? He's missing from #Bristol & we're concerned for his welfare. Matthew is white, 6ft 2, stocky & bald. He wore a black T-shirt, a blue jacket & green shorts. He may travel by bicycle & may use the cycle path.
Please call 999, referencing 5223220176 with any information.