The sudden death of former American swimming champion Jamie Cail is under investigation by authorities in the U.S. Virgin Islands, authorities said.

Cail, who was 42 years old, was found dead in the home she shared with her boyfriend in St. John, United States. In a statement, the Police Department of the Virgin Islands said.

The Criminal Investigation Bureau is looking into this case right now, the police said in a statement.

Police didn’t release the name of Cail’s boyfriend, but he told them he left a bar and went back to their house to check on Cail just after midnight on Tuesday.

“Upon his arrival, he found his girlfriend lying on the ground,” police said.

According to police, Cail’s boyfriend and a companion drove her in a private vehicle to the Myrah Keating-Smith Clinic, where efforts to save her life were unsuccessful.

The death was reported to police at 2:39 a.m.  Tuesday, authorities said.

Police disclosed no additional information regarding Cail’s death and implored anyone with information to contact the Criminal Investigation Bureau.

Cail hailed from Claremont, New Hampshire, and was a star swimmer for much of her adolescence, according to her family, who spoke to the Manchester affiliate of ABC station WMUR.

According to the school’s alumni association, she was also a member of the women’s swim team at the University of Maine in 2000-2001.

According to SwimSwam.com, a swimming news website, Cail was a member of a relay team that claimed a gold medal at the 1997 Pan Pacific Championships.

“She was just she was she was a very beautiful person,” a friend told WMUR. “She had a huge heart. She was really loving and kind and well-loved and popular on the island and everybody knows her.”