Coastguards in Cornwall have had to issue warnings to sailors to inform them that a new island has appeared in the Canary Islands.
The island has been formed by molten lava pushing up from the seabed.
Falmouth Coastguard, which deals with incidents in the Atlantic, said it confirmed the new island with coastguards in Spain.
Richie Williams, from Falmouth Coastguard, said they were passing on warnings from the Spanish.
He said: "They've issued a navigation warning to this effect and have put a four nautical mile cordon around that area
"Vessels are being advised to take extreme caution when approaching."