Lyndon Dykes loan from Birmingham to Hibs falls through after deadline
Tunisian winger Sebastian Tounekti joins Celtic on a five-year deal
Rangers announce signing of Youssef Chermiti from Everton, Derek Cornelius on loan from Marseille as Cyriel Dessers departs for Panathinaikos
Adam Idah leaves Celtic for Swansea City for a reported fee of around £6m
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Celtic have signed Tunisian winger Sebastian Tounekti on a five-year deal.
The 23-year-old joins from Swedish side Hammarby IF and previously spent the early part of his career in Norway, where he won two league titles with Bodo/Glimt.
Celtic news imminent...
This is worse than the Willo Flood window in 2009 for Celtic. Six months ago going toe to toe with Bayern Munich - now with a worse attack than Hibs. Sabotage from the board and I wouldn’t blame Brendan if he walks.
Patrick
That's one Scotland striker got his move tonight.
Will Lyndon Dykes follow suit and join Hibs?
Stick with us, and we'll bring you news on that one as soon as we have any.
Nisbet said: “It’s great to be back. Ever since I left it was always in the back of my mind that I wanted to come back but I am here, so I’m delighted.
“The way last season finished I felt I was really hitting my best form, and I felt at home here.
“It’s good to get my long-term future settled. It’s a great club, there is a good atmosphere around the place, there’s a brilliant dressing room and when I have got all of that, that’s when I play my best football.
“The gaffer really helped me improve my game last season. I want to keep improving and this is the best place for it.
“I’m feeling fit, I’m mentally and physically ready to come and help the team, on and off the pitch.”
Image source, SNSNisbet won the Scottish Cup with Aberdeen last season
"Kevin made a real impact during his time here last season and his arrival provides a long-term solution to our attacking options," Aberdeen manager Jimmy Thelin told the club's website.
"He has proven goal scoring ability, and we were really starting to see all that Kevin can offer towards the end of last season. As a Scottish International he helps enhance the identity of our team, which we continue to develop.
"What is most important to us is that Kevin really wanted to be here at Aberdeen. He knows what we are looking to achieve here, and he wants to continue to be a part of that."
Nisbet scored 13 goals in 38 appearances for Jimmy Thelin's side, helping them lift the Scottish Cup.
On his return to Millwall, he has made one start and three substitute appearances this season.
Glasgow-born Nisbet started his career with Partick Thistle and also played for Raith Rovers and Dunfermline Athletic before joining Hibs.
Right, let's hear from Jimmy Thelin after his side secured a deal for Kevin Nisbet to return to the Dons...
Now that the Scottish window is shut, where else could players still head?
If a move fails to materialise after the Scottish transfer deadline has closed, players and clubs still have a few options available:
St Mirren have signed striker Dan Nlundulu from Bolton Wanderers on a one-year deal.
The 26-year-old spent last season on loan at Cambridge United, where he made 30 appearances in English League One, scoring five goals.
St Mirren manager Stephen Robinson said: We’ve high hopes for him.
"We need to keep him fit. He’s got a lot of talent but he’s had a couple of injuries, which he’s now over.
"He’s someone we are really looking forward to working with and getting the best out of him.
"It’s typical of our signings; players that have real talent but have maybe lost their way a little.
"We know he’s a really good player and he’ll be a really effective player for us going forward."
Image source, Getty Images
Tom English
BBC Scotland chief sports writer on Sportsound
Kevin Nisbet has returned to Aberdeen on a three-year deal for £300,000.
The 28-year-old spent last season on loan at Pittodrie but has now has signed a three-year contract with the Scottish Premiership club.
Nisbet, who has 11 caps for his country, was sold to Millwall by Hibernian in summer 2023, signing a three-year contract.
But, despite 30 appearances for the Championship club, 20 of them starts, and scoring five times, he was sent on loan to Aberdeen last season.
Kheredine Idessane
BBC Scotland
The window has slammed shut or gently closed, depending on your mood. There's no time pressure on Celtic for Kelechi Iheanacho now that he's a free agent, but the deal for Sebastian Tounekti has to be submitted sharpish.
The same goes for the Lyndon Dykes to Hibs loan.
Are various club social media teams getting the videos and interviews ready, per chance? Or is it a real up-to-the-last-minute mad transfer deadline scramble?
Don't go anywhere. The next few minutes could be tasty.
Clubs have an hour to dot the i's and cross the t's.
Will some pretty high-profile deals be concluded?
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Imagine Dykes and Bowie up front. A target forward and a forward with pace. I think we would have one of the best attacks in the league (not in Old Firm)
Daniel
Daniel, at this rate, it could very well rival their forward lines
Tyrone Smith
BBC Sport Scotland
Still no white smoke from Pittodrie, but the Kevin Nisbet deal should be announced shortly.
Brian McLauchlin
BBC Sport Scotland
And still the work is ongoing at Easter Road to push this deal for Lyndon Dykes over the line.
The player is still with the Scotland squad in Glasgow, but no medical issues will scupper this move.
Still waiting on both clubs to finalise the loan move!
Speaking of 15...
That's how many minutes there are until the window shuts.
No slamming, though, just a gentle closure.
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Iheanacho has had one goal in 15 appearances on loan at Middlesbrough. Absolutely desperate stuff that Brendan Rodgers is having to go into his own contact book for a striker here.
Chopper
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Can you lie to me and tell me a striker is finalising a move to Celtic?
Even if you make up a name, just need something to keep me going.
Joe
Iheanacho seems to be the one but since you asked...
Henrik Larsson, Chris Sutton, and John Hartson are all checking their phones frantically.
It's entering 'they'd do a job' territory.
There's a Japanese striker at Birmingham that they could always chance a loan enquiry for too...
Celtic now would not have to confirm the signing by 2300 BST this evening, or by midnight when you take into account the one-hour grace period clubs have to sort the paperwork out.
Furthermore, no transfer fee would be involved, nor does he need to be bought out of a contract.
Surely this is Celtic's striker and it's not all a truly bizarre coincidence.
Kelechi Iheanacho has tonight terminated his Sevilla contract.
The Spanish side have said they have "reached an agreement to terminate the contract of the Nigerian striker".
"The Nervion club would like to thank Iheanacho for his work during this period and wishes him the best of luck in the future."