Cameroon Football Federation (FECAFOOT) President Samuel Eto’o has apologised for what he described as a “violent altercation” at the World Cup in Qatar on Monday night.

A video circulating on social media appears to show the 41-year-old kneeing a man in the head outside Stadium 974 in Doha.

In a statement, Eto’o, who is the Cameroon FA president, said he was provoked by a fan who was “probably” an Algeria supporter as part of an ongoing campaign of harassment following Cameroon’s qualifying win over Algeria in March.

“After the Brazil-South Korea match, I had a violent altercation with a person who was probably an Algerian supporter,” Eto’o wrote on his social media channels.

“I would like to apologise for losing my temper and reacting in a way that does not match my personality. I apologise to the public for this unfortunate incident.”

Algeria filed a complaint over the performance of the referee in the qualifying play-off in Blida, in which Cameroon’s Karl Toko Ekambi scored the winner with the last kick of the match.

Eto’o added: “I pledge to continue to resist the relentless provocation and daily harassment of some Algerian supporters.

“Indeed, since the Cameroon-Algeria match on 28 March in Blida, I have been the target of insults and allegations of cheating without any evidence.”