Ukip MEP Steven Woolfe was punched in the face, new medical evidence suggests.
Sources told ITV News that "bruises consistent with a punch" were found by a team of independent experts.
Mr Woolfe was involved in an altercation with fellow Ukip MEP Mike Hookem in Strasbourg on Thursday.
A spokesman for Mr Woolfe said the new medical examination supported his claim he was attacked.
In a statement, the spokesman said: "A team of experts independent of the hospital staff were called in to examine physical injuries to Steven's face, head and body that were inconsistent with just a seizure or a fall as a result of a seizure.
"The team of experts also examined other pieces of evidence including clothing and images relating to those injuries.
"Their report will shine a different light on claims currently being made in the media."
The politician is still in hospital in Strasbourg being monitored by the neurological department.
He again tweeted a picture of his hands which he says proves he is not the one to blame.
He captioned it: "Can you see any bruising or abrasions?"