The Game of Thrones set in Belfast has been threatened with a bomb scare, according to The Telegraph UK.

Luckily for the cast and crew, police managed to foil the plot that targeted ex-security force members working on the set.

According to police reports, republican terrorists planned to leave a bomb next to a catering unit at the Paint Hall Titanic Studios where the former cops would converge for meals.

Thanks to an informant though, the plot was foiled. The details were coursed through an agent to an ex-cop who contacted concerned authorities. According to the informant, the terrorists became interested about the HBO set for Game of Thrones after learning that a huge number of former police officers are working there.

The bomb threat actually happened months ago but was kept under wraps. Since discovering about the plot, security around Paint Hall significantly increased.

Because of this, the terrorists did not dare to attempt another bomb plot.

A police source, with knowledge of the Game of Thrones bomb bid, confirmed to Sunday Life: "The dissidents initially got word that a number of ex-RUC and army personnel worked at the studios. They were even told the exact job in which most of them were employed and the catering unit where they took their lunch and tea at the same time every day."

According to the source, the bomb was made up of fertilizer with a Semtex booster inside a wheeled bin.

"Security around the Paint Hall was visibly increased and because of this the dissidents never went ahead with the plan," the source added.

At the same time, the ex-cops who are working with Game of Thrones have added up their own personal security. The set has recruited thousands of individuals from across Northern Ireland to handle all sorts of jobs such as electronic production and building security.

Aside from Game of Thrones, there are also different films being filmed in Paint Hall, such as Your Highness which stars Oscar winner Natalie Portman.

Newspapers also reported about the attack about a "threat to life involving ex-members of the police and security forces working at Game of Thrones". It also stressed, "It cannot be emphasised enough the importance of this information."

The Telegraph also attempted to get a comment from the Northern Ireland Screen which handles the Paint Hall Titanic Studios. But a spokesperson from the said studio declined to comment.