England and Saracens star has "unreservedly" apologised following his arrest incident in Majorca on Sunday.
Saracens have announced that they will be investigating about the reports of the arrest of England international Billy Vunipola in Majorca.
Owen Farrell kicked the decisive penalty goal in the closing stage as Saracens edged out Bath Rugby 15-12 in the latest round of the Gallagher Premiership at The Recreation Ground on Friday.