"I've investigated major crime for most of my service, and I've seen some awful things. This has not happened with these funds".
"There are wider regulatory offences but I think manslaughter is the most serious and that's the one that needs to be looked at first".
Mr Hammond said a criminal investigation would examine whether building regulations had been breached when the block was overhauled. "Nowadays, we would not dream of building towers to the standards of the 1970s, but their inhabitants still have to live with that legacy".
The investigation into the fire will span a "wide range of areas", Cundy said, from its original construction, to the refurbishment and how it has been managed and maintained.
The prime minister has faced criticism for not speaking to those affected immediately after the fire.
Local councils will also carry out safety checks on buildings similar to the Grenfell Tower, the prime minister said.
The number of missing or dead is expected to change, though police may not be able to identify everyone who died due to the intensity of the fire.
Experts believe the building's new exterior cladding, which contained insulation, helped spread the flames quickly up the outside of the public housing tower early Wednesday. "My commitment to families is that as soon as we can, we will locate and recover their loved ones", Cundy said.More news: Mueller Hires 13 Lawyers for Special Counsel
An apartment inside Grenfell Tower in north Kensington is seen after the blaze. Hands cautioned that officials don't yet have exact details about the renovation that ended just previous year.
"I would like to ask anyone who was in Grenfell Tower that night, but for whatever reason has not told us they are safe to please call our Casualty Bureau", he said.
Minute's silence for Grenfell Tower victims is held in Dundee.The tribute is held for Grenfell Tower victims.
He also said only five people have been formally identified so far by police, after officers earlier warned that some may never be identified owing to the condition of the remains.
The 23-year-old Alhajali is the only victim of the Grenfell Tower fire to be officially named as the hard process of identifying human remains continues.
He said it had been "incredibly emotional working in there", adding: "On Saturday I went in myself and went to the top floor".
In an interview with the BBC, Mrs May promised a public inquiry into the disaster and pledged that survivors would be rehoused within weeks.