Jean-Claude Juncker has said the European Parliament "must respect British democracy" following last week's EU referendum.
Speaking at an emergency session to discuss the Brexit vote, the European Commission President's comment was met with applause by the parliament - and a slow clap by Nigel Farage.
Juncker turned to the UKIP MEP and responded in an amused tone: "That's the last time you are applauding here."
"And to some extent I am surprised you are here," he added. "You were fighting for the exit. The British people voted in favour of the exit, why are you here?"
More top news
An explosion at a rally he was speaking at was the narrowest of escapes for Zimbabwean President Emmerson Mnangagwa.
President Emmerson Mnangagwa said ‘it is not my time’ after the blast at a Zanu PF event in Bulawayo.
Crown Prince Mohammed bin Salman is seen as the force behind the king’s decision to change the rules.