The quote in the DN says Mr. Den, the six-wheeler driver, said: "that before the accident he was parked in the leftmost lane and was about to turn to the right lane" (I assume about to make a U -turn).
From the picture, both vehicles are over on the left side of the carriageway - so he didn't get far with turning (legal or not) - and both vehicles (especially the Isuzu) are quite far from the central reservation.