The Nation today says:
According to police sources, two improvised bombs found at the house were in the form of portable radios, stuffed with C-4 explosives. Hand grenades with the safety lever removed were inserted in the radio units to be used as the detonator.
Small metal balls were also put in the units intended as shrapnel. There were six flat round metal plates with a diameter of 2 centimetres attached beneath the radio bomb units, each weighing about 2 kilograms.
Contrary to media reports that Morabi used two hand grenades while on the run, police sources said he used two radio bomb units, out of a stock of five. One went off in the first accidental explosion in the rented house, two were used by him and two others were found in the house.
The radio bombs went off five seconds after their grenades were activated. They had a blast radius of about 40 metres and kill radius of about 3-5 metres, the sources added.