Torrey Canyon oil spill 1967 - in pictures

Fifty years ago, the supertanker Torrey Canyon ran aground between Land's End and the Isles of Scilly, spilling more than 100,000 tonnes of crude oil into the Channel. The Observer photographer Jane Bown was sent to cover the cleanup operation across Cornwall's beaches. These images are a small selection of the 270 photographs she took there, now housed in the GNM Archive.

• Torrey Canyon disaster - the UK's worst-ever oil spill 50 years on