MK Dons have made the signing of on-loan Brighton defender Warren O'Hora permanent.
The 21-year-old Irishman joined Russell Martin's team in August and has so far made 14 league appearances.
Martin described him as one of the team's most consistent performers this season. Speaking on the club's website Martin said:
He’s been one of our best players this season and certainly earned this contract. The challenge for him now is to establish himself as a top player at this level.
Also making a move is fellow Irishman Simon Power.
Norwich City have said their 22-year-old winger has joined League Two side Harrogate Town.
Power had been on loan for King's Lynn this season and had scored two goals for the National League side.
Harrogate boss Simon Weaver said they'd been tracking the player since last summer.
Northampton Town were also busy, signing midfielder Bryn Morris on loan for the rest of the season.
The 24-year-old former Middlesbrough trainee has had loan spells with a string f league clubs, including Burton, Wycombe, Shrewsbury and Walsall before finally signing for Portsmouth in 2019.
He played in the 4-0 win over Northampton last October.
Speaking on the Town website, boss Keith Curle said he'd be a great fit for the club:
"He is only 24 but he has good League 1 experience and a good League 1 pedigree, having played in the League 1 play offs twice in the last three seasons."
Meanwhile Southend centre half Greg Halford has signed a contract extension with the club.
The 36-year-old veteran joined the Shrimpers last month and has now agreed to stay until the end of the campaign.