Property tycoon Ong Beng Seng pleaded guilty to one charge of abetting the obstruction of justice on Monday in part of a landmark case that led to the jailing of former transport minister S. Iswaran for obtaining valuable items as a public servant last year.

The charges are related to flights, a hotel stay in Doha and Formula One tickets that former Transport Minister S.Iswaran had received when he headed the Singapore Formula One night race steering committee.

The 79-year-old businessman pleaded guilty on Monday to one charge of abetting obstruction of justice. His sentencing is set for August 15.