Former England footballer Paul Gascoigne was taken to hospital after an incident at a west London hotel, police sources said on Monday.
Ambulance crews and police were called to the Knightsbridge hotel on Sunday afternoon, from where Gascoigne voluntarily went to hospital where he was being assessed.
No offence was reported and no further action was taken, police said.
"A man was causing concern in a hotel in SW1," police said in a statement. "He was tended to by an ambulance crew and taken to hospital voluntarily."
The 40-year-old former Newcastle United and Tottenham Hotspur midfielder, known as Gazza, has battled with alcohol and personal problems. In February he was detained under the mental health act after a disturbance at a hotel in Gateshead.
He was released after two weeks of treatment.
Gascoigne's last direct involvement in football was as manager of minor League club Kettering Town, a job he left in 2005.
He had also played for the Italian club Lazio, Rangers, Everton and Middlesbrough as well as Chinese club Gansu Tianma and Boston United.
He was capped 57 times by England between 1988 and 1998 scoring 10 goals, and made international headlines during the 1990 World Cup finals in Italy.
After bursting into tears after receiving a yellow card in England's semi-final against West Germany, which would have seen him suspended for the final if England had qualified, he became a household name and "Gazzamania" was born.