Prema dnevniku Sabah, ta tri napadača bili su povezani s afganistanskim ogrankom al-Kaide, koja je postala poznata po bombaškom napadu na voz u Madridu 2004. godine.
According to the Sabah daily, the three assailants had links to al-Qaeda's Afghani branch, which became known for the train bombing in Madrid in 2004.