Kevin Nolan has been released by West Ham United.

Nolan captained the east London club to promotion to the Premier League in 2012 and was their top scorer in the following two seasons. In all he scored 31 goals in 157 games for the club.

His departure was confirmed in a statement issued via the club's official website, whufc.com.

It said: "West Ham United would like to thank Kevin for his considerable effort and commitment over the past four seasons and wish him all the very best for the future, on and off the football pitch."

Nolan, who joined the Hammers from Newcastle in June 2011, indicated his intention to look for a new challenge as he aims to continue his career elsewhere.

He said: "I've thoroughly enjoyed my time at West Ham United and will take some great memories with me. I'm now looking forward to the next challenge playing for a new club."