A heartwarming video has emerged of three children surprising their mother by reuniting with her for the first time in 15 years.

The footage, shot on Wednesday in St. Johns, NL, Canada, shows the mother bursting with joy as she realises that her three children came to support her as she is battling with cancer.

"It had been over 3 years since I seen my mother and almost 15 years since she had all 3 of her children together in the same room," the daughter wrote online.

"Us 3 children planned for 3 weeks for me to fly home to Newfoundland from Ontario and give her the best gift yet. The gift of having her whole family together."

"I may only be home for a week but this memory of the excitement and pure joy on her face will stay with me for the rest of my life and nothing can compare to that!!"

++CLIENTS PLEASE NOTE: THIS VIDEO HAS BEEN EDITED++

A week before Christmas 2016 my mother called me to let me know that her doctors found something in her lungs and suspected cancer. Early jan 2017 they did all the testing and found cancer cells in her breast as well. After multiple tests and biopsys they finally had the results. On Jan 24 i called home to let my mom know that me and my girls lost 100% of lower leve contents due to a major sewer backup... Thats when she broke the news that the results were back. It was stage 3 breast cancer and had already moved to her lympnodes and her lungs. Exactly 1 week later, on Jan 31, she had her left breast removed. Once she is healed she will start treatment on the rest of the cancer.
It had been over 3 years since i seen my mother and almost 15 years since she had all 3 of her children together in the same room. Well we had a huge surprise in store for her. Us 3 children planned for 3 weeks for me to fly home to Newfoundland from Ontario and give her the best gift yet. The gift of having her whole family together. To surround her with love and support. I may only be home for a week but this memory of the excitement and pure joy on her face will stay with me for the rest of my life and nothing can compare to that!!