Amy Winehouse on April 23
04/24/2008 AT 09:25 AM EDT
British police have confirmed to PEOPLE that they are investigating claims that Amy Winehouse attacked a man in a London street early Wednesday morning.
"Police are investigating an alleged assault on Chalk Farm Road at approximately 3:20 am on April 23," says a Metropolitan Police spokesman. "A 38-year-old man [contacted] Kentish Town police station and alleged a 24-year-old woman had assaulted him. No arrests have been made as yet but inquiries continue."
Winehouse, 24, was alleged to have headbutted a man outside of a bar who tried to hail her a taxi, according to a detailed account in The Sun
. The article is accompanied by a slideshow sequence of photos which include one of the "Rehab" singer walking into a lamppost
The singer, who has battled alcohol abuse and drug issues
both before and during the incarceration of her 26-year-old husband Blake Fielder-Civil over claims of witness tampering
, started the session on Tuesday afternoon and continued on until early Wednesday morning.
claims Winehouse attacked two men, kissed another, trashed a bar and smoked drugs on a sidewalk.
A call to Winehouse's London rep was not immediately returned.
The incident, described by the paper as her "most depraved night yet," is the latest in a long list of events involving the talented but troubled Winehouse, who entered rehab
in January and won a gaggle of Grammys
Last August she was hospitalized in London
for what her rep called "exhaustion", however her father Mitch recently revealed that she in fact had a seizure brought on by drugs.
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