At around 5:15am a car overturned on the southbound carriageway between the junctions for Burnham-on-Sea and Bridgwater in Somerset. A short time later a second collision between a van and a lorry occurred in the same area. One man has been killed.
The crashes left debris scattered over the northbound carriageway and so the motorway has been closed in both directions. Police are currently at the scene dealing with the incident and beginning an investigation into the circumstances of the collision.
More top news
The iconic Shaun in the City figures are being auctioned off on Thursday. It's expected to raise millions for Bristol Children's Hospital
Mike Ford is the favourite to replace Stuart Lancaster - but says his focus is on getting disappointed England players back at Bath Rugby.
Family and friends of a missing man from Swindon took to the streets today in a desperate effort to find him.