This is the heart-stopping moment a family dog rescued its older sister from drowning after she fell into a swimming pool.
The clip shows Luna, a 14-year-old blind pit bull, walking in close proximity to the pool on December 19, before falling in and eventually being rescued by fellow pooch Caipirinha.
Dog owner Julieta Firpo shared the CCTV footage taken in the garden of her home in the town of Sunchales, Argentina, and praised Caipirinha for saving Luna's life.
Alongside the post, she penned: "Yesterday walking through the patio, she fell into the pool."
She added that Luna had "started to lose her way" and was disoriented in the days leading up to the terrifying accident.
The incredible footage shows Caipirinha instantly race to the pool to be by his sister's side to devise a plan.
Caipirinha attempts to rescue her sibling by lowering his paw into the body of water and grabbing Luna's collar.
He later managed to secure the distressed canine before leading her to the shallow end of the swimming pool, which is situated in the family garden.
Thankfully, Luna, who is entirely blind, was aided to the steps of the swimming pool before climbing out and resting following the exhausting ordeal.
Heroic Caipirinha, who was rescued by Julieta, instantly struck a close bond with Luna after being introduced to the family during a trip to Brazil.
The dog owner- who described Caipirinha as "our heroine" - told Argentinian news outlet Todo Nocitas that Luna's mum, Syrah, 15, is also blind and has a close friendship with Caipirinha.
She said: "The two are inseparable. Luna is a pit bull who is very old, her mother Syrah, is 15-years-old and also lives with us."
Luna became part of the Firpo family after her previous owners had thrown her from a car window while at a Brazilian petrol station.
