They were detained in connection with the case in the Croydon area on Monday, August 1.
The police have arrested two men on suspicion of murder as search continues for a 24-year-old student nurse who was last seen over three weeks ago.
Owami Davies was last seen just after midnight on Derby Road in West Croydon on July 7, after she left her family home in Grays, Essex.
The student nurse’s family and friends have not heard from her since, nor has she attended work.
Two men, aged 23 and 27, were detained in connection with the case in the Croydon area on Monday, August 1. They remain in custody in a south London police station.
The Metropolitan Police said today the case remains a missing person investigation.
Detective Constable Marie Spear, from the Missing Persons Unit in South London, said earlier;
‘Owami’s family have not heard from her for more than three weeks and she has not turned up to work.
‘We are currently treating this as a missing person investigation. Owami was in a vulnerable state when she was last seen and we need the public’s help in piecing together her movements on the night she went missing.
‘I would urge anyone who has seen her, or knows where she is, to contact police immediately.
‘I’d also ask people in the West Croydon area to check their sheds and outbuildings and report anything suspicious or out of the ordinary.’