At around 9.15pm on Wednesday, 7 October, officers from the Central East robbery taskforce were patrolling on bicycles along the River Lee towpath between Ferry Lane N15 and Markfield Park in Tottenham, North London.
Officers approached a group of males, and one was detained.
Two other males made off from police on pushbikes and were pursued by police also on bicycles. One of the males was retrieved from the water, which is part of the River Lee Navigation system, and detained by officers.
Despite their efforts, the other male could not be located.
Officers on scene immediately alerted specialist marine policing teams who searched for the outstanding male for several hours overnight, with the assistance of colleagues from the National Police Air Service.
The search resumed in the early hours of this morning. At around 9.50am today Thursday, 8 October, police recovered the body of a male.
Officers are working to identify him and establish whether he is the male concerned. A road closure remains in place on Ferry Lane N15, between the junctions of Mills Mead Road and Bream Close.
The two males detained were arrested on suspicion of possession of an offensive weapon and remain in custody in North London police stations.
Commander Paul Brogden said: “I fully recognise the concern this incident will cause among members of the local community. The matter was referred by our Directorate of Professional Standards to the Independent Office for Police Conduct who have confirmed that they are independently investigating this tragic incident, and how the males came to be in the water. “Our thoughts are with the family of the deceased male and we will do everything we can to support the IOPC investigation.”