Three individuals who were in the heavily guarded building in Tehran where Ismail Haniyeh was assassinated have told Middle East Eye that the Hamas political chief was killed by a projectile fired at his room and not a planted bomb.

The individuals, one of whom was staying in a room near Haniyeh's, said on Friday that they heard sounds before an explosion shook the building, sounds they said appeared to be consistent with those made by a missile.

"This was definitely a projectile and not a planted bomb," one of the individuals told MEE, adding that they saw the aftermath of the explosion which appeared to be consistent with an attack by a missile.