Emergency services state that a 67-year-old man succumbed to his injuries after being rescued from the water off the East Yorkshire shore.
The incident prompted a major emergency response involving several crews in the area.
The full circumstances concerning the tragedy remain still coming to light.
It is understood that personnel from the maritime rescue, RNLI institution, and police were all dispatched to the area after concerns of individuals in trouble in the sea.
The search concentrated around the coastal area of Withernsea.
Currently, the focus has shifted to the inquiry into the circumstances that resulted in this fatal incident.
Authorities continue to remind the people to exercise extreme caution near the sea, highlighting that situations can change rapidly.
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