The 25-year-old’s been questioned on suspicion of assisting an offender and has been bailed.
Officers say she’s not staff at the jail.
Detective Chief Superintendent Gareth Rees, Head of Operations for the Met’s Counter Terrorism Command, which is leading the investigation, said: “We continue to carry out a thorough investigation into the full circumstances of the alleged escape of Khalife, and we have now arrested two other people as part of this.
“I know there continues to be a great deal of interest in this case, but I must remind the public that Khalife is awaiting trial. It is therefore extremely important that people do not report, comment upon or share information which could in any way prejudice the future court proceedings.”
Information from the public is vital to all police investigations.
If you see or hear something that doesn’t feel right and could be linked to terrorist activity, trust your instincts and act by reporting it in confidence at gov.uk/ACT or the anti-terrorist hotline on 0800 789 321. In an emergency, always dial 999.
The latest arrest follows that of a 24-year-old man on Wednesday, the 17th of January on suspicion of assisting an offender. He remains on bail to a date in late April.
Neither the 24-year-old man nor the 25-year-old woman arrested are members of staff at HMP Wandsworth.