European football ruling body UEFA have condemned in strong terms the abuse received by Premier League referee Michael Oliver and wife Lucy.
Oliver awarded a last-minute penalty in Spain as Real Madrid knocked Juventus out of the UEFA Champions League last week and was criticised by keeper Gianluigi Buffon and a couple of Italian media.
Italian referee warns Juventus goalkeeper Buffon
Buffon: No regrets over referee Oliver comments
Real 1-0 Juve: Police investigate threats to referee's wife
Referees have their say on Benatia foul on Vazquez
According to BBC Sport, Lucy Oliver - a Women's Super League referee who also officiates men's non-league football - received threatening texts after her mobile number was posted on social media following the game.
A UEFA statement reads: "Uefa strongly condemns the abuse directed at Michael Oliver and his wife.
"We have been in contact with them to offer our support and we trust the relevant authorities to take action against those individuals who have behaved inappropriately both on and off social media." said European football's governing body in a statement to BBC Sport.
In a dramatic end to the match at the Bernabeu in Madrid on Wednesday, Juventus captain Buffon was sent off for confronting Oliver over the 93rd-minute penalty decision.
Buffon later told media the English official had a "bag of rubbish for a heart" and defended his comments on Saturday, saying he "stands by all of it".
Following the match, Lucy Oliver's Twitter account was targeted by some supporters posting abusive messages.
A spokesperson for Twitter confirmed that several offensive tweets reported by Lucy Oliver have been removed for violating its abuse policy.