Two cousins aged 14 and 15 have been reported missing from their home in Newton Aycliffe.
Thomas and Kieran Miller have not been seen since Sunday.
The police say they are concerned because of the age of the boys.
More top news
A look ahead at the forecast for the Tyne Tees region.
The two projects going head-to-head today are Rural Refurb and Window on the Wild
A Tyneside food bank has been ranked as the busiest in the UK. The Newcastle West End branch fed almost 22,000 people in six months.