French fishermen have blocked the ports of Calais and Boulogne in protest at so-called pulse fishing, which uses electrified nets to stun fish.
Fishing boats stopped ferries entering or leaving Calais while a roadblock stopped traffic at Boulogne.
Calais is a major link between the UK and France used by thousands of tourists and lorries every day.
The European Parliament recently voted to ban pulse fishing which is mainly used by Dutch trawlers.
Full story here: BBC News