Kaliyah Coa is still missing since police were first alerted of her entering the water close to Barge House Causeway, near London City Airport, on Monday (March 31) at 1.23pm.
She had been playing during a school inset day at the time, police have said.
Emergency service crews attended the scene within minutes and conducted a large-scale search in an effort to locate her, but the search later scaled down.
However the Metropolitan Police says that it is committed to finding Kaliyah as the search remains ongoing.
Kaliyah’s family have requested privacy and a photo of the girl will not be shared at this time.
Chief Superintendent Dan Card, local policing commander for north east London, said:
“Our specialist officers are supporting Kaliyah’s family through this deeply upsetting time and our thoughts go out to all those impacted by what has happened.
“We are committed to finding Kaliyah and are working with partners to conduct a thorough search over a wide area – utilising drone technology and boats.
“I’d like to thank the members of public, our first responding officers, and colleagues from other emergency services, as they responded rapidly to carry out a large-scale search during a highly pressurised and distressing time.”
He added that extra officers will be in the area during the coming days.
Anyone with information is asked to contact police by calling 101, quoting 3699/31Mar.