Scotland Yard have said it has “reasonable grounds” to suspect corporate manslaughter relating to Grenfell Tower.
People affected by the flames on the tower block have been told senior figures in Kensington and Chelsea Council (KCC) and its Tenant Management Organisation (TMO) will face police questioning.
The Metropolitan Police released a letter to update residents of the area on the investigation, saying it had informed the council and TMO that the witness testimony and evidence gathered has led investigators to suspect corporate manslaughter.
The news has been cautiously welcomed by campaigners.
The newly-elected leader of Kensington and Chelsea Council, Elizabeth Campbell, said the council would fully co-operate with the police in every way they could.
The police have also clarified there will not be a running commentary on the investigation into the tower fire.