A 20-year-old self-confessed party girl died suddenly at the weekend after taking cocaine.

Haniska Pett’s sudden death has led her older brother to warn of the dangers of taking the Class-A drug.

Fun-loving Haniska Pett, from Gravesend, was rushed to Darent Valley Hospital on Sunday afternoon following an adverse reaction to the illegal stimulant.

Sadly the 20-year-old died soon after arrival.

~ The risks of using cocaine >>>

Her parents Ian, 48, and Angela, 45, and older brother Joe, 22, of Valley Drive, Gravesend, have been left shell-shocked by her sudden death and gravely concerned whether the drug Haniska took was contaminated with other substances, creating a deadly combination.

Joe Pett said: "I was told by police that there could have been speed and ecstasy mixed in the cocaine. She had taken cocaine before but had always been fine. I had stopped her from doing it. I didn’t realise she had to started to use again."

Joe’s nightmare began on Sunday after receiving a call from Haniska’s frantic friend who told him his little sister was having a fit.

The 22-year-old rushed round to the house in Huntley Avenue, Northfleet, and found his only sibling in a terrible state.

Joe is now urging others to be aware of the dangers of taking cocaine. He said: "My sister loved life and wanted to enjoy it. Whenever she was out she would always get people up and dancing. She loved to laugh and had a great smile.

"I’m keen to let people know of the dangers. I don’t want any more people getting hurt."

Inquiries by Kent Police are ongoing into the causes surrounding Haniska’s death.

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Meanwhile tributes have been flooding in from Haniska’s friends and relatives on social networking site Facebook.

At the time The Messenger went to press more than 450 people had joined the group "R.I.P Haniska Pett you will be missed by all but never forgotten."

Friends of the hairdresser and former Whitehill Primary School pupil spoke of how much she loved life.

A candlelit vigil is taking place this Sunday from 7pm at the Riverside Tavern, Canal Road, Strood for the 20-year-old who spent her secondary education at both Thamesview School and Northfleet School for Girls.

Tributes to Haniska can also be left here by clicking on the speak out link below.