A 15-year-old was killed after wandering into the path of motorway traffic following a minor row with his father over his drinking at a family wedding, an inquest heard.

Student Scott Turner was hit by a number of vehicles, including an unmarked police car, on the M23 at Crawley at about 1.50am on July 18 last year.

The teenager, from Burgess Hill, had earlier in the evening been drinking pints at the wedding reception of a cousin.

Scott's father, Andrew Turner, said he received a reaction typical of many teenagers when he warned Scott about his drinking but that he did not appear out of control.

Mr Turner, a builder, told the inquest at Horsham Magistrates' Court: "He didn't appear drunk to be honest, but he was merry.

"He wasn't falling over himself, but I did say to Scott, 'You've had enough, leave it there'.

"He then said a few words to me, as 15-year-old kids do. He said, 'Oh, leave me alone Dad. You are always having a go at me'.

"I said, 'Scott, you've had enough and go to bed'." Mr Turner added that Scott "reared up" at him and stormed off which he had done on previous occasions.

The teenager had left the party and was spotted by motorists on foot in dark clothing on the hard shoulder of the busy M23 where he was struck by several vehicles.

A post-mortem examination found Scott's death was from multiple injuries.

Toxicology tests showed he was more than twice the legal drink-drive limit, with 195mg of alcohol in 100ml of blood. The legal limit is 80mg. He tested negative for drugs.

The inquest continues.