A man killed in a bomb blast outside a security post near Bangladesh's main airport was suspected of having planted the bomb himself, dpa quoted police as saying on Friday. The bomb went off on Friday evening in front of the security post at Ashkona, only half a kilometre away from Hazrat Shahjalal International Airport in the capital, Dhaka. The incident occurred a week after another bomber blew himself up at a nearby security post of the crime-busting Rapid Action Battalion.