Bereaved families and a survivor of the Grenfell Tower fire have delivered a petition to Downing Street calling for an overhaul of the public inquiry, declaring it would be a “tragedy” if their concerns were ignored.

Sandra Ruiz, Karim Mussilhy and a teenage girl, who all lost loved ones in the blaze, joined former resident Nicholas Burton to deliver the 16,000-name document to Prime Minister Theresa May.

Clutching a green box with “Grenfell” written inside a heart, the youngster, who asked not to be named, was greeted by staff at the door of Number 10.

The petition asks for a panel from a diverse range of backgrounds to sit alongside Sir Martin Moore-Bick at the inquiry.

Ms Ruiz said afterwards: “It would be a tragedy if, again, we’re ignored by those that we entrust with our safety and confidence in the inquiry is destroyed.

“We hope the Prime Minister is listening and agrees to what are reasonable requests.”

The Prime Minister has powers under the Inquiries Act 2005 to opt for a panel-led inquiry, rather than relying on one chairman. Residents fear the inquiry top team lacks first-hand experience of culturally complex areas such as North Kensington.

Grenfell Tower housed people from a variety of religions and ethnicities, predominantly from working-class backgrounds.