River Hamble oil spill exercise begins
An exercise to test the response of authorities to an oil spill in a Hampshire river has begun.
The three-yearly drill, which will finish on Thursday, will see booms placed upstream and downstream across the River Hamble near the M27 bridge.
Some booms will remain overnight but will not pose a danger to navigation, the county council said.
The main channel will stay open at all times but river users have been warned access may be restricted.
The booms which are left in place overnight will be illuminated and a boat patrol will be on station throughout, the River Hamble Harbour Authority added.