Bieber hints at split from Gomez?

Justin Bieber has set the rumour mill flying that his relationship with Selena Gomez is over.

The couple have been dogged by claims their relationship is on the rocks over the past few months, and the Canadian heartthrob has posted several pictures online that have left fans speculating he is single.

Justin first posted a black-and-white Instagram picture of himself alone and looking dejected, with the caption "lingse", which fans quickly translated as an anagram for "single".

He then removed the picture and posted a picture of himself looking moodily into a mirror with the caption "just me".

The 18-year-old singer is currently on his world tour and in the past few days has posted pictures of himself hanging out with his male friends.

Justin and Selena, 19, first stepped out together as a couple at the 2011 Vanity Fair Oscars party, confirming they were dating, but both are very private when it comes to talking about their relationship.

But the Baby singer opened up to Oprah Winfrey an interview previewed last week.

Justin said: "We just sometimes... we gotta take back exits. I never make [Selena] separate from me because I don't want her to ever feel like I'm ashamed of her. [Selena and I] get away where... you know... getting away together."