A bus carrying passengers has plunged into France's River Seine near the town of Juvisy.
A trainee driver was behind the wheel and is said to have made a handling error, according to local media.
There were four people on board, including the driver's instructor and two passengers, when the incident happened at 9.30am local time (8.30am BST).
They were all rescued, with passers-by rushing to their aid.
The bus also dragged an empty parked car into the river.
Juvisy mayor Lamia Bensarsa Reda said she was 'stunned' by the accident.
Rescue teams work in the area where a bus with passengers on board and a car fell from a bridge into the Seine river in Essonne, on the outskirts of Paris, on April 30
'It's the first time I've seen anything like this. I think I've just experienced the worst day of my life.
'Luckily, there were no casualties thanks to the quick response of the police and emergency services,' she said.
Images show emergency crews including a fire engine, rescue boats and a helicopter at the scene.
This is a breaking news story, more to follow.