Work at Spencer Court in Newcastle started on Tuesday, with huge cranes tearing down the top of the building.
The top floors have now gone and work on the lower levels of the flats is taking place.
The work is expected to continue for up to two weeks.
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GMB's Ben Shephard is cycling, running and swimming from Whitehaven to Tynemouth to raise money for the Children's Heart Unit Fund (CHUF).
Grandfather Stewart Anderson, 54, died after an incident at Durham's Loveshack nightclub in Durham City
The events were part of the work of the Commission for Health and Social Care Integration in the North East.