British and French fishing boats ram each other in the Channel in a long-running dispute over the rights to shellfish beds. Stones and smoke bombs were also thrown. UK boats are legally allowed to fish for scallops in the bay off Normandy all year round, but French vessels are restricted to certain months to allow stocks to replenish. Fishing groups are calling for a new deal to be brokered between the two nations over when and where scallops can be collected. The conflict has remained unresolved for 15 years.