• At approximately 2000 local time, a dump truck rammed the security gate at the Marriott, Islamabad.
• While stopped at the gate, the driver exploded a suicide vest, lighting the truck on fire.
• Mortars, other explosives cook off for approximately three minutes, while security organizes and attempts to stop fire.
• Minutes later, the main explosive of about 600kg of RDX and TNT, combined with an aluminum powder to accelerate the flame.