Grey's Anatomy star Chambers hospitalised

'Grey's Anatomy' star Justin Chambers reportedly checked into a psychiatric ward at a hospital in Los Angeles earlier this week.
The actor's representative told celebrity website TMZ.com that he "was exhausted and suffers from a sleeping disorder".
Chambers, who plays Dr Alex Karev in the medical show, went in to hospital "voluntarily to get some help".
The actor was treated at the same hospital where singer Britney Spears is currently under a psychiatric hold.