One Direction Singer Liam Payne Hospitalised Following Niall Horan's Las Vegas Birthday Bash

One Direction singer Liam Payne was left hospitalised after Niall Horan’s Las Vegas birthday party, according to reports.

The 1D singer was helping is Irish bandmate celebrate his 21st birthday when he apparently took a tumble, leaving him with his arm in a cast.

Liam's cast is visible in one party snap

However, while sources have reportedly told MailOnline that Liam got “a bit carried away” while break-dancing, his representatives have informed The Mirror that Liam’s injury was incurred whilst “training”.

While Liam and his bandmates are yet to make a comment on the injury, a photo posted by one of the lads’ fellow party-goers shows Liam posing in a rooftop swimming pool with a cast on his right arm.

Niall and Liam were joined in Sin City by a number of pals, including the band's hairdresser Lou Teasdale.

The Irish singer also bumped into Joe Jonas during the celebrations.

It’s been a busy year for One Direction, who completed their ‘Where We Are’ tour just a few months ago, however they aren’t planning to slow down anytime soon.

On 17 November, they will release their fourth album - imaginatively titled ‘Four’ - which will be preceded by the single ‘Steal My Girl’.

Liam Payne

One Direction's 100 Sexiest Pics