World Loneliest Orca Staring Motionless at the Gate of His Tank for 24 Hours Straight at an Aquarium

Heartbreaking footage shows a captive killer whale lying almost motionless whilst staring at the gate to his enclosure for 24 hours straight in Argentina.

Kshamenk, a 35-year-old Orca, is being held in a tiny pool at Mundo Marino, Argentina's largest aquarium.

Shocked visitors have accused the park of holding the killer whale in cramped conditions with restricted movement and total isolation from its species.

A 24-hour timelapse filmed by campaign group UrgentSeas on August 12 shows Kshamenk languishing motionless with his face pointed directly towards the enclosure's gate as if asking to be let out.

Kshamenk - previously described as 'the world's loneliest Orca' - was first brought to Mundo Marino in 1992 after being captured off the Samborombón Bay on the coast of Buenos Aires.

According to the aquarium, the then three-year-old orca was found beached on the bay by three fishermen along with three other killer whales.

Kshamenk was then taken to his concrete tank at the aquarium, where he has spent the last 32 years.

His tankmate Belen died in 2000, at the age of 13, meaning that he has reportedly spent the last 24 years in total isolation from his species.

UrgentSeas, a non-profit organization advocating to end marine captivity, is campaigning to free Kshamenk and bring him to an open sanctuary with other orcas to socialize with.

He is now the last remaining captive killer whale in Argentina.

A spokesperson from the organization said: 'We continue to work with Argentinian activists and members of Congress to try to highlight and address his cruel world.

'He needs to be removed from his tiny concrete tank and join other members of his species before it's too late.'

MailOnline has contacted Mundo Marino for comment.