TOWIE’s Lucy Mecklenburgh BLOCKS Sam Faiers on Twitter after clash of fitness websites!

This week in your amazing heat magazine, you can read about how Lucy Mecklenburgh thinks that Sam Faiers is copying her Results With Lucy fitness app, with a friend of Lucy’s telling heat: “Lucy thinks Sam could have been more original.”

But it’s stepped up a level now – as heat has heard that Lucy Meck has blocked Sam Faiers on Twitter. Sound the (former) TOWIE star drama klaxon!

Both stars have Twitter accounts set up for their fitness websites – Sam’s is @CelebTrainSam and Lucy’s is @ResultsWithLucy.

We’re told by a friend of the reality stars': “Sam’s and Lucy’s Twitter handles were both tagged in a tweet by a follower, but when Sam’s team, who run the account with Sam, went to reply, they found that Results With Lucy had actually blocked them.” Awk-ward.

To make it worse, @ResultsWithLucy doesn’t follow Sam’s personal account, but follow her sister Billie Faiers.

Last week, Sam told heat that everything was fine between then and she’d spoken to Lucy on the phone, adding: “We haven’t fallen out, we’re still friends.”

So did someone over at Lucy HQ get a bit click-happy with the block button? Or is this full-on TOWIE war? Head to the bunkers, just to be safe.