Luton have signed former Peterborough and Brighton striker Craig Mackail-Smith on a two-year deal.
Norwich City have completed the signing of goalkeeper Jake Kean following his release from Blackburn Rovers.
Leeds have signed striker Mouhamadou Habib Habibou from Belgian club SV Zulte Waregem on loan until the end of the season.
The 25-year-old, who is a Central African Republic international, has joined the Elland Road outfit with a view to making his move permanent in the summer.
Boss Neil Warnock told the club's official website: "He's a player we've had across for a few days and we liked what we saw.
"We had the opportunity to take him on loan and that gives us a chance to have a longer look at him.
"We think he could be an exciting prospect."
Habibou added: "I'm very happy to be here. I know about the background of the club and the expectations around the club and I'm happy to sign and start playing."