Ukip leadership favourite Steven Woolfe is recovering in hospital after being admitted in a "serious" condition following an altercation at a meeting of the party's MEPs.
The 49-year-old MEP said in a statement, posted on social media, that a CT scan had shown no blood clot on his brain but that he was still going to be kept in hospital overnight as a precaution.
He made no reference to the reported altercation which took place at the European Parliament in Strasbourg.
It is understood that Woolfe passed out after suffering what were described as two "epileptic-like fits" as well as numbness on the left-hand side of his body.
There were unconfirmed reports that he was punched during the course of an argument while other reports suggested he hit his head after falling heavily.
A spokeswoman for French national police said that the incident had not been reported to them and they had no current plans to investigate. "If someone decides to ring and make a complaint, we will of course follow it up," she said.
A spokeswoman for the European Parliament confirmed Woolfe had collapsed in the main building in Strasbourg, and said that an investigation into the circumstances was now under way.