The Wanted's Nathan Sykes has been having vocal rehabilitation sessions as his recovery from surgery continues.

The British singer recently underwent an operation to remove a hemorrhaging nodule on his vocal cord.

His recovery period is set at months and doubts have been cast by his bandmates on the singer's future ability.

Taking to Twitter last night (May 15), Sykes posted that he has started working on rebuilding his voice. He said:

"Had a vocal rehab session today. Slow and steady..."

His bandmates meanwhile recently performed as a quartet on US TV as they appeared on Dancing with the Stars.