Hello.
I very much hope that one of the aircraft involved is not a XL750. If so, it is almost certainly ZK-KAY which is used for parachute drops at Cark Airfield in Cumbria. I certainly hope it is not ZK-KAY as I used visit the airfield regularly when we had a caravan at the Haven site next to it. (Photos I took of the aircraft
HERE).
I just sincerely hope the North West Parachute Club pilots are ok
Condolences to all involved, a tragic accident.