A beach in Cornwall has finally been reopened fully to the public after a potential explosive was found there at the weekend.

St Agnes Coastguard Rescue Team were back at Trevaunance Cove, St Agnes today (Wednesday) for the fourth day running following the discovery of ordnance on Sunday.

A section of beach has been closed off ever since, while advice was taken from the Explosive Ordnance Disposal team.

After days of waiting to identify what it was, the object has now been established as a phosphorous submarine marker.

A coastguard team spokesperson said: “The team gathered alongside HM Coastguard Portreath Rescue Team at Trevaunance Cove this afternoon to meet with the Explosive Ordnance Disposal team, who had been tasked from their base in Plymouth to survey the previously found item on the beach.

The Explosive Ordnance Disposal team were at the beach on Wednesday (Image: St Agnes Coastguard Rescue Team)

“After various checks were made, it was deemed that the object found was a phosphorous submarine marker.

“The EOD has now removed this ordnance and the beach is fully open again to beach users.”

Lifeguards raised the red flags and had cordoned off the area since the discovery, monitoring it daily.

People were advised to stay away from this section of the beach until either the lifeguards or coastguards had advised otherwise.

The object has now been established as a phosphorous submarine marker (Image: St Agnes Coastguard Rescue Team)

St Agnes Coastguard confirmed that now the marker had been removed, the beach was fully reopened to the public.

“Thank you to members of the public for your patience, and for obeying the cordon,” they added.

“Please remember if you do find anything suspicious on the beach, do not touch or move the item and alert 999 Coastguard and the beach lifeguards.”