The Air Accident Investigation Bureau (AAIB) has produced a preliminary report of its investigations into a mid-air collision involving two helicopters, 9M-HCA and 9M-HCB, on Nov 8 in Taman Melawati, Kuala Lumpur, said Transport Minister Wee Ka Siong.

"This is a preliminary report and that investigation into the accident is still ongoing," he said in a statement today to update on the investigation into the helicopter collision, adding that the preliminary report was available on the Transport Ministry’s website...