Firefighters have now successfully rescued two men from one of the flats close to the collapse.
Crews remain at the scene.
More top news
Variable cloud, warmer air & mainly dry outlook over the next few days. Some potential rain Sunday night into Monday. Kerrie has the detail
Higher temperatures and more sunshine than average - but a very dry April this year
A breast surgeon from Cheshire has been convicted of wounding with intent after carrying out "completely unnecessary" operations.