The carcass of a fifth sperm whale has washed up on England's east coast, the coast guard said Monday, after four others died in a spate of beachings nearby in recent days.

A pod of up to six whales had been spotted close to the shoreline Friday.

"HM Coastguard can confirm that a fifth whale has washed up near Wainfleet, (Lincolnshire). The area is currently inaccessible," the coast guard said in a statement.

The latest case follows the death of a beached whale in Hunstanton, Norfolk, on Friday and the discovery of three carcasses near the resort of Skegness over the weekend.

On Monday, one of the Skegness whales could be seen with "Mans Fault" (sic) spray-painted on its tail. Small groups of people gathered around the corpses, taking photographs.

The cause of the deaths was not immediately known, although there have been several previous examples of sperm whales becoming confused and beaching in the shallow waters of the North Sea.

Scientists from Britain's Cetacean Strandings Investigation Programme will carry out postmortem examinations.