A fire broke out at the house, in Victory Road, Allenton, in the early hours of Friday, May 11.
Sixchildren Duwayne Philpott, (aged 13), Jade Philpott (10) and brothers John Philpott (9), Jack Philpott (7), Jessie Philpott (6) and Jayden Philpott (5) all died as a result of the fire.
In view of the arrests, I would urge anyone who may have been holding back, not felt comfortable to voice their concerns or not had the confidence, to do so now. They have my personal reassurance that we will deal with their information sensitively.
We still need information to help us in this inquiry. The latest arrests are just one step further in the investigation. It is absolutely vital that if you know anything you think could help us, come forward now, do not wait any longer. It is important that we find justice for these six young children.
More top news
Amber Rudd feels the heat and a summer visit for Donald Trump raises fears of unrest.
Experts called on the Government to immediately tighten up fire regulations without waiting for the conclusion of the Grenfell inquiry.
Tottenham Hotspur is one of the first clubs to declare its commitment to phasing out single-use plastics at its new stadium.