A prayer service has been held to remember the victims of two explosions which destroyed a wood mill in Bosley in Cheshire a week ago.
Four people were left unaccounted for following the blast. Fire and rescue teams have found three bodies so far.
A Bosley mill worker says he was given no safety training whatsoever before he started working there just a week ago.
Scott Cole told ITV News: "There was no safety training at all.
"I went in there to have a brief interview, three minutes, and he told me to start on Monday.
"He didn't tell me how to work the machines, nothing. I just learnt myself. I asked for a protection mask. Three days in, and I still didn't get one."
The Health and Safety Executive is now investigating the causes of the explosion.
The mill owners have said they will cooperate with the process but families of four workers still missing said they were "disgusted" they had not been in touch since the incident happened.
An emotional prayer service has been held to remember the victims of the Bosley mill explosion, a week on from the disaster.
Kelvin Barks told ITV News his brother William, who was an engineer at the factory, tried to get a new job but 'had bills to pay'.
Dorothy Bailey, Derek Moore, Jason Shingler and William Barks have been missing since Friday's explosions.