Sinead McNamara: 20-year-old Instagram model from Australia found dead on billionaire's superyacht

Cause of death remains unclear

A 20-year-old Instagram model from Australia has been found dead on a Mexican billionaire’s superyacht.

Sinead McNamara was found in a critical condition on the boat on Thursday as it was docked on the Greek island of Kefalonia.

She died while being airlifted to a hospital in Athens.

Ms McNamara was working as a crew member on the ship Mayan Queen IV, which is owned by Alberto Bailleres, 87, a mining tycoon.

Local media reports said Mr Bailleres and his family had left the yacht days before the death and only crew remained on board.

Ms McNamara had more than 12,000 followers on her Instagram account, where she posted pictures from her travels.

The cause of her death remains unclear.

A senior police officer told The Sunday Times: “By the looks of it, she took her life. We expect the autopsy to verify this in the coming days.”

However, her cousin told the Australian Daily Telegraph her family did not know the cause of death, but believed she may have died in a boating accident.

Ms McNamara’s family were reportedly on their way to Greece to visit her when they heard the news of her death.

The Mayan Queen IV will remain in port as investigators work to discover what happened, local media reports.

The Australian Department of Foreign Affairs and Trade has said it is providing consular assistance to her family.