Firefighters have returned to the scene of a huge blaze on Rackheath industrial estate for a second day.

At its height, 60 firefighters and 13 crews were at the Osborne House, Wendover Road base of PHS Datashred, which shreds documents on behalf of other companies, after the fire broke out at 8.50am yesterday (Wednesday).

The 'deep seated' fire caused serious structural damage to the building, including the roof, and the back of it collapsed.

One fire crew stayed at the scene all night. The aerial ladder plus another fire engine have been sent back this morning.

Investigations are ongoing.

A Norfolk Fire and Rescue Service spokesman said: 'We've sent back the aerial ladder and water carrier because the paper bales are still smouldering.

'We will be there as long as it takes and it looks like we will be there for most of today. Investigations will continue to determine the cause.'

The entrance to the industrial estate is open as usual today and a cordon is in place around the PHS Datashred factory unit.

Yesterday, smoke could be seen for miles around and eye witnesses said flames could be seen licking through the windows of the large two-storey building.

A spokesman for PHS Datashred, which is understood to employ about 20 to 30 staff, said that it had followed all correct procedures following the incident.

The spokesman added: 'We are grateful for help in containing the problem.

'Our primary concern is for the health and safety of any people affected, and we are pleased to report that there have been no injuries in connection with the incident.'