Leyton Orient have signed midfielder Nigel Atangana from fellow League Two side Portsmouth for an undisclosed fee.
The 26-year-old has appeared 48 times for Pompey since joining from Havant & Waterlooville in 2014.
Atangana, who last played for Portsmouth in November, has signed an 18-month deal with Orient.
Meanwhile, Orient have confirmed defender Jean-Yves M'voto has left the club after playing 10 games for the O's.
Find all the latest football transfers on our dedicated page.