Traffic came to a halt on one of East Yorkshire’s busiest roads today after a two-car smash closed the motorway for hours.

Emergency services raced to the scene on the Ouse Bridge following the crash between two sports cars, thought to be a black Porsche and a blue Mustang.

Eyewitnesses have tonight described the horror of seeing “debris flying everywhere” – including a the Porsche engine – as the cars collided just after 5.30pm near Junctions 36 and 37 between Howden and Goole.

The exact injuries are not yet known but they are not thought to be serious. It is understood there were two men in the Porsche, one believed to be about 20 years old and the other older.

One witness who saw the crash, said: “We saw everything. There didn’t appear to be any major injuries. One of the men had head injuries but just cuts, nothing threatening, the other was confused and in shock.

Another witness, who did not want to be named, said: “One of the car engines was right across the other side of the road, all the windows were smashed in, the wheels were off one of them.

“It looked really bad and there was debris all along the bridge. It was shocking but sadly we see this all the time. I just hope that no one has been seriously hurt.”

Police, paramedics and firefighters all attended the crash scene, which resulted in a large oil spill.

Police officers remained at the scene until past 8pm tonight, while firefighters headed back to base at about 7pm having cleaned up the spillage. The road is still closed at 9.30pm.

A spokesman for the fire service said: “We were called to a two-vehicle RTC and our crews assisted in swilling away the fuel.

“Our initial call was that someone might be trapped in the car but this did not turn out to be the case. There was also a lot of debris on the road which was blocking it off.”

A three-mile diversion remains in place, taking drivers off the junction near Goole, towards Howden, before rejoining the M62. This is having a knock-on effect to traffic in the Goole and Howden area.

One man, who was trying to drive towards the M62 from Goole, said: “The traffic is absolutely chaotic. It is having a knock-on effect and traffic is completely solid.”

Speaking from nearby to the scene, the man said: “The debris is strewn from the top of the bridge. It is all scattered along the barriers.”

By about 7pm traffic had started to move quicker around the diversion but the road closure remains in place still.