A six-year-old boy who was thrown from a 10th-floor viewing platform at the Tate Modern gallery in London has regained the ability to speak, his family have said.

The French child, who cannot be named because of his age, was critically injured after plunging five storeys in August and spent months in intensive care.

He was hurled from the viewing platform by autistic teenager Jonty Bravery, then aged 17, who admitted attempted murder earlier this month.

The six-year-old's family, who were on holiday when he was attacked, said he was making “wonderful progress” and has managed to pronounce “one syllable after another”.

“Our little knight begins to speak,” they said in a message posted on an online fundraising page which has raised more than €169,000 (£143,500) for the boy’s treatment.

Tate Modern: Six-year-old boy 'thrown' from 10th-floor Show all 15 1 /15 Tate Modern: Six-year-old boy 'thrown' from 10th-floor Tate Modern: Six-year-old boy 'thrown' from 10th-floor Emergency crews attend the scene at the Tate Modern art gallery after a six-year-old boy was thrown from the 10th-floor viewing platform by a teenager. PA Tate Modern: Six-year-old boy 'thrown' from 10th-floor The young boy was taken to hospital by air ambulance . He fell five storeys before landing on a roof below at the central London art gallery. AFP/Getty Tate Modern: Six-year-old boy 'thrown' from 10th-floor A 17-year-old male was arrested on suspicion of attempted murder. PAP Tate Modern: Six-year-old boy 'thrown' from 10th-floor Emergency crews attending a scene PA Tate Modern: Six-year-old boy 'thrown' from 10th-floor Visitors in a lock down inside after the incident Isabella Knazek/PA Tate Modern: Six-year-old boy 'thrown' from 10th-floor A police officer looks out from the viewing platform PA Tate Modern: Six-year-old boy 'thrown' from 10th-floor People look on at the emergency crew in attendance PA Tate Modern: Six-year-old boy 'thrown' from 10th-floor The Tate Modern building was evacuated AFP/Getty Images Tate Modern: Six-year-old boy 'thrown' from 10th-floor Police were also supporting the family of the injured six-year-old PA Tate Modern: Six-year-old boy 'thrown' from 10th-floor Emergency crews attending a scene at the Tate Modern art gallery, where a teenager has been arrested after a child fell from height and has been taken to hospital from the gallery in central London by air ambulance. PRESS ASSOCIATION Photo. Picture date: Sunday August 4, 2019. See PA story POLICE Tate. Photo credit should read: Yui Mok/PA Wire Yui Mok PA Tate Modern: Six-year-old boy 'thrown' from 10th-floor A sign posted outside of the Tate Modern reminding visitors the gallery closed PA Tate Modern: Six-year-old boy 'thrown' from 10th-floor Police officers are seen outside the Tate Modern gallery in London on August 4, 2019 after it was put on lock down and evacuated after an incident involving a child falling from height and being airlifted to hospital. - London's Tate Modern gallery was evacuated on Sunday after a child fell "from a height" and was airlifted to hospital. A teenager was arrested over the incident, police said, without giving any details of the child's condition. (Photo by Daniel SORABJI / AFP)DANIEL SORABJI/AFP/Getty Images DANIEL SORABJI AFP/Getty Images Tate Modern: Six-year-old boy 'thrown' from 10th-floor The viewing platform were the boy was pushed from AFP/Getty Images Tate Modern: Six-year-old boy 'thrown' from 10th-floor The art gallery reopened the day after, however the viewing level remained closed PA Tate Modern: Six-year-old boy 'thrown' from 10th-floor LONDON, ENGLAND - AUGUST 05: A view of the 10th floor balcony at the Tate Modern on August 05, 2019 in London, England. A six-year-old boy was in critical but stable condition after falling from a 10th floor viewing platform onto a 5th floor roof at the museum on Sunday. A 17-year-old boy was arrested on suspicion of attempted murder for allegedly throwing or pushing him over a railing. (Photo by Dan Kitwood/Getty Images) Dan Kitwood Getty Images

“He pronounces one syllable after another, not all of them, and most of the time we have to guess what he means but it’s better and better.”

They said the boy, who suffered a bleed on the brain as well as fractures to his spine, legs and arms, has also started to move all of his limbs again.

“It is very difficult to see it concerning his left arm and hand, but it’s really slowly beginning to move,” they added.

“As he begins to move, sensations come back and he feels more pain, above all during the night, which is very exhausting for everybody, but he is very courageous and we stay strong for him.”

Doctors said it was remarkable the boy had survived the fall.