From the Bangladesh Observer ...
"It is learnt from a number of unofficial sources that the captain of the Dhaka-bound flight BG048 sought landing clearance from the control tower of Shah Amanat International Airport at about 8:40 a.m.
Control tower officials denied clearance on the grounds of poor visibility. But, the captain of the aircraft ignored control tower’s instruction and decided to land."
Oh dear.... shame, one of the few if only DC-10's seen at LHR now