Jon Wills was walking along the seafront in Felixstowe when he saw the pup on the beach near the Spa Pavilion theatre on Sunday morning.
Volunteers for the British Divers Marine Life Rescue (BDMLR) attended the scene after receiving reports of the sighting from members of the public.
The BDMLR was formed in 1988 when a group of divers joined in response to a mass mortality of common seals in the Wash area of East Anglia.
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The seal was rescued by the British Divers Marine Life Rescue (Image: Jon Wills) Seal rescue has remained a major component of the group’s work with medics rescuing animals year-round across the UK.
The seal pup in Felixstowe was assessed and determined to be very underweight.
It was also suspected the baby marine animal had mouth rot.
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It is believed the seal pup was underweight (Image: Jon Wills) The volunteers took the seal away for further assessment and treatment.
A new colony of seals was established at Orford Ness after nearly 500 were seen at the former military testing site by February 2024.
Around the UK, the pupping season happens between late August and early January but can vary depending on the region.