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A Cornish beach has been closed off after a mystery yellow substance washed ashore, coating the sands in a "putty-like" material.

People have been warned not to go near the bright yellow substance discovered on Hannafore beach, near Looe in Cornwall, on Saturday afternoon.

Coastguards and the Environment Agency are now carrying out tests to try and find out what it is, and if it might be harmful.

Earlier this week a white substance was found on beaches in west Cornwall, but tests later proved it was non-dangerous palm oil.

Officials say it is possible the two finds are liked, but they are closing Hannafore beach until they know for certain.

A spokesman for Brixham Coastguard said: "We are not sure at the moment what it is. It is not the same colour as the substance that was washed up on the beaches further west of Cornwall.

"But we are advising people not to go near it or allow their pets to go near it until we have found out exactly what it is."