The police watchdog has launched an investigation into the arrest of a 13-year-old girl in east London.
A police constable was placed on restricted duties after the incident in Wapping on October 5, the Met said.
Footage of the incident appeared to show police manhandling the girl, who was wearing school uniform, on a pavement.
It happened after officers were called at 4.15pm to Commercial Road to reports of disturbance.
Once they arrived, they arrested a 13-year-old girl on suspicion of affray and for a breach of the peace.
She was de-arrested at the scene for the affray and taken home to prevent a further breach of the peace. Once there she was de-arrested for the breach of the peace.
A spokesman for the Met said: "On October 7, a member of the public made a complaint about the arrest. This was referred to the Directorate of Professional Standards (DPS) who referred it to the IPCC.
"On October 19, the IPCC informed the Metropolitan Police Service that they would carry out an independent investigation."
Chief Superintendent Sue Williams, Tower Hamlets Borough Commander, said: "Following this incident, I attended a community meeting and heard first hand the community's concerns following the circulation of footage on social media of this incident, which is now being independently investigated by the IPCC.
"It is only right and proper that a full independent investigation is carried out into the circumstances of the arrest and the conduct of the officer who made the arrest. This is important not only for communities in Tower Hamlets and London but most importantly the girl's family.
"The IPCC has our full support and whilst we await the conclusion of their investigation I have sought to reassure our communities that anyone who does not behave in accordance with the values of the MPS will be held to account."
