A fireworks contractor in charge of a display held in the UK on the night of a massive motorway crash in which seven people died and 51 were injured has been cleared of breaching health and safety laws.

A fireworks display at a rugby club is at the centre of the investigation into a crash which killed seven people on the M5 in Britain on Friday.

A multiple crash on Britain's M5 motorway in which at least seven people died triggered a "massive fireball", police said.