World players’ union FIFPRO has called for FIFA to investigate Spanish football president Luis Rubiales after he kissed Jenni Hermoso in the aftermath of Sunday’s World Cup final.

Rubiales, the president of the Royal Spanish Football Federation (RFEF), kissed the forward on the lips during the medal ceremony following the team’s 1-0 win against England in Sydney.

FIFPRO’s call for action followed a statement from the Spanish players’ union on Tuesday that condemned such behaviour as “never appropriate or acceptable”, while United States winger Megan Rapinoe described the event as a “physical assault”.

Rubiales, who has faced calls to resign, issued an apology on Monday, which Spain’s prime minister Pedro Sanchez described as “insufficient”.

And on Wednesday, a FIFPRO statement said: “FIFPRO fully endorses the statement of Spanish player union AFE in calling for immediate action to address the conduct of Spanish federation president Luis Rubiales at the FIFA Women’s World Cup final and is requesting an investigation of his actions under FIFA’s code of ethics.

“We reiterate that it was deeply lamentable that such a special moment for the players of the Spain national team taking place before a global television audience should be stained by the inappropriate conduct of an individual in a role carrying so much responsibility.

“Uninitiated and uninvited physical approaches towards players are not appropriate or acceptable in any context, and especially when they are put in a position of vulnerability by a person who holds a position of power over them in their workplace.”

Hermoso initially said on social media she “didn’t like” the kiss but a statement on her behalf was later released by the RFEF in which she described it as “spontaneous”.

The 33-year-old released a brief statement on Wednesday, which read: “My union FUTPRO, in coordination with my agency TMJ, are taking care of defending my interests and being the interlocutors on this matter.”

Rapinoe, who featured in the World Cup for the United States, also criticised Rubiales for celebrating by grabbing his crotch.

She told American magazine the Atlantic: “There was another picture that signals such a deep level of misogyny and sexism in that federation and in that man at the final whistle, just grabbing his crotch.

“What kind of upside-down world are we in? On the biggest stage, where you should be celebrating, Jenni has to be physically assaulted by this guy.”

The women’s football union FUTPRO has also condemned Rubiales’ actions and called on the RFEF to act for the protection of female footballers’ rights.

“From FUTPRO we express our firm and resounding condemnation of conduct that violates the dignity of women,” read a statement.

“From our association we ask the Royal Spanish Football Federation to implement the necessary protocols, ensure the rights of our players and adopt exemplary measures.

“It is essential that our national team, current world champion, is always represented by figures that project values of equality and respect in all areas.”

The RFEF will hold an extraordinary meeting of its general assembly on Friday and said “internal proceedings” were open in relation to integrity issues arising from the trophy ceremony.