[5] According to an article in Göteborgs-Tidningen, Mirsad Bektašević, the Swedish citizen of Bosniak descent who was convicted on terrorism-related charges in Sarajevo in 2007, was a frequent attendee of the Bellevue Mosque.

[7] In July 2009 it was reported that Xasan Xuseen, described as spiritual leader of the Somali Islamist group al-Shabaab, had been invited to speak at a conference at the mosque.

[2][9] In November 2012, the mosque held the first public dawah course in the Swedish language, it was arranged by controversial British Islamic missionary group iERA and Sveriges Förenade Muslimer.

On 11 September 2011 its chairman was among those arrested on suspicion of an attack against artist Lars Vilks, who had an exhibition at art gallery Röda Sten in Gothenburg.

During the criminal investigation, police found propaganda for violent jihadism on a computer in their office with pictures named Al-Shabaab and mujahideen.