Liam Neeson’s transformation has sparked some major concern

Earlier in New York this week Liam Neeson sparked serious concern from fans when he appeared to be almost unrecognisable.

The Taken actor has transformed and is now looking startlingly slim and sporting much longer grey hair.

Liam, 63, was seen on Saturday looking quite gaunt. In a cap and sunglasses he appeared to be attempting to go unnoticed as he went about his business in the SoHo area.

Wearing loose fitting clothing, his thinner frame seemed to be highlighted even more over the weekend.

It hasn’t been made clear whether the actor’s changed appearance is for a new project or not. He has just recently finished filming a Martin Scorsese film and is set to start work on another in September of this year.

Just a few weeks ago the star was meeting and greeting fans at The Ronald McDonald House where he seemed more like he usual self.

Speaking to The Mirror, a rep for Liam said that "he's never been healthier."

The actor who has become much-loved for his “particular set of skills” since the Taken franchise achieved great success but has said recently he will be retiring for action movies soon.

“Maybe two more years – if God spares me, and I’m healthy,” Liam said to The Guardian. "But after that, I'll stop [the action], I think."