Tottenham called for action after "utterly reprehensible online racist abuse" towards Son Heung-min following their 2-0 derby triumph over West Ham.

Son was dropped to the bench for Sunday's visit of West Ham but scored as a second-half substitute after Emerson Royal's opener in a routine win for Spurs on Sunday.

The South Korea international was allegedly subject to online racial abuse after the victory that moved Tottenham into the top four, albeit having played a game more than fifth-placed Newcastle United.

"We have been made aware of the utterly reprehensible online racist abuse directed at Son Heung-min during today's match, which has been reported by the club," a Tottenham statement read.

"We stand with Sonny and once again call on the social media companies and authorities to take action."

It is not the first instance of concerning abuse directed towards 30-year-old Son, who allegedly suffered similar last season against Chelsea.

Football clubs have called for greater action from social media companies to combat such incidents, with Brentford's Ivan Toney and Birmingham City's Troy Deeney subject to racial abuse this month.