Wikileaks co-founder Julian Assange could face a renewed investigation into an allegation of rape in Sweden.
Lawyer Elizabeth Massi Fritz said she would do everything possible to get the investigation reopened in Sweden.
Assange, who had been granted asylum in Ecuador's London embassy for seven years, was arrested on Thursday.
Swedish prosecutors said they were examining the case at the request of the alleged victim's lawyer.
The US also wants to extradite him from the UK over his alleged role in one of the largest ever leaks of government secrets in 2010.
Australian-born Assange faces a charge of conspiracy to commit computer intrusion in the US for his alleged role in one of the largest ever leaks of government secrets in 2010, which could result in a prison term of up to five years.