Katie Bieri, and Sophia Kunthara

Friends and family members of a 16-year-old girl who died in Rocky Point, Mexico, last weekend are raising funds to help with the costs of her transportation and funeral even as they are coming to terms with the mysterious circumstances around her death.

Friends say soon-to-be Sunrise Mountain High School junior Lanna Hamann, 16, had made the trip to spend her weekend with a friend's family in Rocky Point, also known as Puerto Peñasco. A family friend said that early Saturday morning, Lanna's mother got a call saying that her daughter had gone into cardiac arrest.

Lanna was with her friend and her friend's parents at the time of the incident, said Marcie Shorts, a close friend of the Hamanns'. She was rushed to a hospital and pronounced dead. Shorts said Lanna's family believes her death might be related to an energy drink she consumed, but there has been no official determination of the cause or manner of the teen's death.

The family arranged for Lanna's body to be returned to Arizona on Wednesday.

News of Lanna's death and difficulties in retrieving her body spurred an online movement with the hashtag #GetLannaHome to raise awareness and funds for the Hamann family.

A GoFundMe fundraiser raised more than $14,000 as of Wednesday evening to assist the Hamann family. Fundraisers also were planned at Chili's and Yogurtology, in addition to a car wash scheduled for Saturday.

At a Chili's fundraiser in Happy Valley, Lanna's friends and family gathered to show their support.

"She brightened up everyone," said Kendra Smith, captain of Lanna's diving team. "No one had a bad thing to say about her."

Lanna was known for playing softball, but her competitive nature made for a great first year on the diving team.

Mark Conte, her diving coach, described Lanna as a "softball stud-ette" who was never afraid to try anything.

"She tried really, really hard. She took a lot of really big hits this year," Conte said.

Conte said the team is planning to dedicate its upcoming diving season to her. Teammates hope to design gold patches to wear on their uniform that say "Lanna" in purple.

Lanna's family has planned her funeral for Monday at Community Church of Joy in Glendale.