Considering where Brexit negotiations left off, (Hard Brexit looking slightly more likely) anyone with immediate GBP/EUR exchange's should strongly be considering making part or all of what they'll need to exchange before negotiations fully get back underway.
The Financial Times reported that the European Central Bank was concerned about the exposure of some European banks to Turkey. Turkey’s President Erdogan is expected to speak today in an attempt to calm nerves.
Sterling has a mini recovery but it will be limited - Next possible recovery could be next Thursdays BoE meeting.
Will EU accept PM May's latest Brexit White Paper.