The TV chef sprung into action to help a woman who had fallen into a water feature on the first day of the Chelsea Flower Show.
He came to the aid of the woman after watching her trip and fall into the water as DIY SOS host Nick Knowles was reportedly among a number of famous stars to have watched on in horror.
Issuing an update on Twitter, Harriott also revealed the identity of the woman he 'saved' as his sister.
Ainsley Harriot reveals identity of woman he saved at Chelsea Flower Show
Just a big thank you to everyone who helped my sister when she had a fall at the Chelsea Flower Show this morning. She’s doing fine and all is well 😊 xx
— Ainsley Harriott (@AinsleyFoods) May 23, 2022
Harriot posted:"Just a big thank you to everyone who helped my sister when she had a fall at the Chelsea Flower Show this morning. She’s doing fine and all is well."
Fans were quick to share their well-wishes for the TV presenter's sibling.
One user wrote:" Aww bless. There are some good people around. Healing thoughts for your sister.x"
While a second person added:" Ah no way hope she’s gets better soon!"
A third fan commented:" Glad to hear she is doing well."
The dramatic scenes unfolded on the opening day of the horticultural showstopper of the year.
The water feature was part of the BBC Studios’ Our Green Planet and RHS Bee Garden display.
The 65-year-old chef reportedly pulled his sister to safety along with several others before she was treated by paramedics and rushed to hospital.
One onlooker told The Telegraph: “The garden was packed with lots of people and I think the woman must have fallen into the pond or tripped over and ended up in the water.
“I think she nearly drowned. She was pulled out by Ainsley Harriott and some other celebrities before they laid her down on the floor. She was coughing up lots of water.”