Police have released CCTV footage of James Malone, four, and his dad, Ian Malone, who have both been missing from home in Rowlands Gill, Gateshead, since Sunday.
Northumbria Police are continuing to appeal for information to help find the pair.
Anyone with information is asked to contact police online, or by calling 101, quoting NP-20210704-0851.
You can also report information anonymously by calling independent charity Crimestoppers on 0800 555 111.