The body of a Dutch volleyball star has reportedly been discovered in a shallow grave in Spain just days after she went missing along with her partner.

Former Olympian Ingrid Visser, 35, and her boyfriend Lodewijk Severein, 57, disappeared earlier this month (May13) after they travelled to the Spanish city of Murcia for fertility treatment.

The couple was last seen on 13 May (13) and its rental car was later found abandoned.

Two bodies have now been found partially buried in a lemon grove close to the city and local officials have confirmed they believe the remains to be that of Visser and Severein.

Joaquin Bascunana, interior ministry spokesman for Murcia, insists forensic tests will continue.

Three men have been arrested in connection with the tragedy, according to the Associated Press.

Visser was part of the Dutch volleyball team which won the European Championship in 1995, and she also represented her country at the 1996 Olympic Games in Atlanta.