Her father and older brother jumped in to try to save her but also struggled in the water.
The statement said: "The management of Club La Costa World Resort would like to offer their honest condolences to the family affected by the loss of three family members on December 24, 2019".
The nine-year-old was the only one who had "some idea" how to swim, according to statements reportedly given by mother Olubunmi Diya, 49, and her surviving daughter Favour, 14, to police.
In a statement released to the media, Mrs Diya said: "I believe something was wrong with the pool that must have made swimming hard for them at that point in time".
"The resort workers heard the screaming and they tried to do CPR as well, but they couldn't help them", he told the BBC.
'She exercised her faith to the limit.
Spain's law enforcement agency, Guardia Civil, have launched a full investigation into the events on Christmas Eve and so far have found "no concerns relating to the pool or procedures in place".
A Nigerian-born pastor in Britain, Gabriel Diya, 52; his daughter Comfort Diya, nine; and his son, Praise-Emmanuel Diya, 16, were on Thursday, December 26, named as the tourists who drowned inside the swimming pool at the Club La Costa World complex in Spain on Christmas Eve.
Police later discovered her swimming cap contained within the pool's pump blueprint - suggesting the three household may per chance presumably per chance want been sucked to their deaths, per experiences.
"The atmosphere as I was walking past is indescribable", she said. "It just wasn't meant to be".
In the statement, the firm, said that management were assisting the authorities "fully" with an investigation into the deaths at the resort, which is near the town of Fuengirola.
A pool expert quoted by the paper described as "very distant", nonetheless not unimaginable, a state of affairs throughout which drains on the bottom of a pool flooring may suck of us underwater if skimmers and completely different cleaners malfunctioned.
She said Comfort slipped and then drifted towards the six-and-a-half feet deep side of the water at around 2pm.
It is understood that the father and daughter are both British, while the son is American.
Counselors are now comforting the widowed mom and her 12-year-old daughter - and relatives have flown from the United Kingdom to be by their side, according to the reports.
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