A SEARCH was launched by coastguards and a lifeboat crew yesterday evening after three red emergency flares were spotted.
The alarm was raised by a boat anchored in the bay off Falmouth at around 9.45pm.
A Navy vessel out to sea also reported sighting the distress flares coming from an area near the end of the Roseland peninsula.
Despite searching for more than two hours, no trace any emergency was found or the source of the flares.
Coastguards believe they must have been set off maliciously.
A spokesman for Falmouth coastguard said the flares were believed to have been fired from somewhere between St Anthony Head and Porthmellin Head on Roseland.
Falmouth RNLI lifeboat was launched and a coastguard team from Portscatho sent to look at the beaches along the coastline.
The spokesman said: “It looked like a genuine emergency but we found no one on the beaches or on the water.
“It appears to be a false alarm but we never found who set off the flares. We believe they must have been set off maliciously.”
The emergency services were stood down and returned home after midnight.