London: A teenager was arrested on suspicion of attempted murder after a six-year-old boy was thrown from Tate Modern museum in London on Sunday, the Metropolitan Police said.

The child was tossed from the 10th-floor viewing platform and landed on the fifth-floor roof, the police said in a statement. The victim was treated at the site and then airlifted to the hospital in critical condition.

The 17-year-old male suspect was arrested by police officers on the same viewing platform.

"There is nothing to suggest that he is known to the victim," the police statement said.