Police have appealed for witnesses who may have seen a car leave the road and enter the Avon River at St Philip's Bridge at Temple Back in Bristol. The incident happened around 4am this morning.
Inspector Paul Winship of Avon and Somerset Police said:
We are obviously appealing for witnesses. It's a very busy part of Bristol even at 4 o'clock on a Saturday morning.
Fire and ambulance were also at the scene. We are not looking for anyone else in connection with the incident.
The scene is still closed while we are continuing with our inquiries.
More top news
Lorries are being parked on the M20 again as a "heavy volume" of traffic heading for Europe led police to reintroduce emergency closures.
The world's top scientists have called for a ban on autonomous weapons and "killer robots" that can attack targets without human control.
Growth figures published today are set to show the economy bouncing back after a weak start to the year.